| DATA_SET_DESCRIPTION |
Data Set Overview
=================
This data set includes the complete set of MSL SPICE data files
(``kernel files''), which can be accessed using SPICE software.
The SPICE data contain geometric and other ancillary information
needed to recover the full value of science instrument data. In
particular SPICE kernels provide rover and planetary ephemerides,
instrument mounting alignments, rover orientation, and data
needed for relevant time conversions.
This data set is contained on a single virtual volume,
MSLSP_1000, including data from all mission phases and covering
2011-11-26T15:51:07 through the end time of the latest rover
surface path SPK file supplied in the data set. Until the end of
the rover lifespan this data set will be accumulating with new
data added approximately every three to six months.
Data Types (SPICE kernel types)
===============================
SPK kernels contain ephemerides for spacecraft, planets,
satellites, comets and asteroids as well as for moving or fixed
spacecraft and instrument structures. They provide position and
velocity, given in a Cartesian reference frame. SPK files are
located under the ``data/spk'' directory of this data set.
PCK kernels contain certain physical, dynamical and cartographic
constants for target bodies, such as size and shape
specifications, and orientation of the spin axis and prime
meridian. PCK files are located under the ``data/pck'' directory
of this data set.
IK kernels (Instrument description kernels) give descriptive and
operational data peculiar to a particular scientific instrument,
such as internal timing relative to the spacecraft clock and
field-of-view model parameters. IK files are located under the
``data/ik'' directory of this data set.
CK kernels describe pointing, containing a transformation
traditionally called the C-matrix which is used to determine
time-tagged pointing (orientation) angles for a spacecraft
structure upon which science instruments are mounted. CK files
are located under the ``data/ck'' directory of this data set.
EK (Events) kernels are derived from the integrated sequence of
events used to produce actual spacecraft commands. EK files are
located under the ``data/ek'' directory of this data set.
LSK (Leapseconds) kernels contain the leapseconds and the values
of other constants required to perform a transformation between
Universal Time Coordinated (UTC) and Ephemeris time (ET). LSK
files are located under the ``data/lsk'' directory of this data
set.
SCLK (Spacecraft Clock) kernels contain on-board clock
calibration data required to perform a mapping between Ephemeris
time (ET) and spacecraft on-board time (SCLK). SCLK files are
located under the ``data/sclk'' directory of this data set.
FK (Frame Definitions) kernels contain information required to
define reference frames, sources of frame orientation data and
connections between these frames and other frames supported
within the SPICE system. This includes mounting alignment
information for each instrument. FK files are located under the
``data/fk'' directory of this data set.
Kernel File Details
===================
A brief overview of the different types of MSL kernels included
in this data set is provided in the CONFIDENCE_LEVEL_NOTE section
of this file while details specific to individual files are found
in the ``*info.txt'' files in the corresponding data directory.
The most detailed description of the data in each file is
provided in metadata included inside the file -- in the
description area of text kernels or in the comment area of binary
kernels.
Software
========
The SPICE Toolkit contains software modules needed to read SPICE
kernel files. SPICE software is highly documented via internal
headers. Additional documentation is available in separate ASCII
text files called Required Reading files. For example, the S- and
P- Kernel (SPK) Required Reading File, named SPK.REQ, describes
use of the SPK kernel file readers and contains sample programs.
The latest SPICE Toolkit for a variety of computer platforms such
as PC, Mac, SUN, etc. is available at the NAIF Node of PDS
electronically (via anonymous FTP and WWW servers). Refer to
information in ``software/softinfo.txt'' for details regarding
obtaining this software. Each version of the Toolkit is also
archived at the NASA National Space Science Data Center.
Loading Kernel Files into a SPICE-based Application
===================================================
The easiest way to make data from a collection of SPICE kernels
available to a SPICE-based application is to list these kernels
in a meta-kernel and load it into the program using the high
level SPICE data loader routine FURNSH. This data set provides
such meta-kernel(s) under the ``extras/mk'' directory. For more
information about the MSL meta-kernel(s), see the file
``extras/mk/mkinfo.txt''.
|
| CONFIDENCE_LEVEL_NOTE |
This data set contains SPICE kernel files created during mission
operations and after mission data reconstruction and analysis.
Some general information about this collection follows here, but
the prospective user is also referred to extensive descriptions
about each file that are stored inside each kernel file. These
metadata provide detailed information regarding the information
source from which the data were derived, the type of processing
applied to the source data, applicability of the data, etc.
Metadata are located in the ``comment area'' for binary kernel
types (SPK, CK, ESQ), accessible using either the COMMNT or
SPACIT utility program found in the NAIF Toolkit. Metadata are
located after ``\begintext'' markers within the text kernel types
(PCK, IK, FK, LSK, SCLK, MK), accessible by using any available
text file display tool such as a word processor, text editor, or
the unix ``more'' or ``cat'' commands.
Where there are questions about data accuracy or ``confidence''
not addressed herein the reader is invited to contact the NAIF
node of the Planetary Data System for possible further
information.
SPK Files
=========
Six kinds of SPK files are provided in this archive:
-- cruise trajectory SPK
-- EDL trajectory SPK
-- landing site location SPK
-- localized rover path and site locations SPKs
-- telemetry-based rover path and site locations SPKs
-- Solar System planets and satellites ephemeris SPKs
-- rover structures and instruments locations SPK
Each kind of file is briefly described below; more information is
available in the file ``data/spk/spkinfo.txt''.
Cruise trajectory SPK
---------------------
The cruise trajectory SPK file contains the reconstructed
cruise trajectory determined by the MSL Navigation (NAV) Team,
JPL. The informal 1-sigma uncertainty for the MSL cruise
trajectory reconstruction is TBD.
EDL trajectory SPK
------------------
The EDL trajectory SPK file contains the reconstructed EDL
trajectory determined by the MSL EDL Team, JPL. The informal
1-sigma uncertainty for the MSL EDL trajectory reconstruction
is TBD.
Landing site location SPK
-------------------------
The landing site location SPK file contains the landing site
location relative to the center of Mars in the Mars body-fixed
frame (IAU_MARS, based on IAU 2000 Mars rotation constants),
determined by the MSL Localization Group, JPL. The informal
accuracy estimate for the landing site location is TBD.
Localized Rover path and site locations SPKs
--------------------------------------------
The localized rover path and site location SPK files contain the
locations of the sites along the path relative to the center
Mars and the location of the rover relative to the center of
Mars.
These SPKs were created using localized data available in the
PLACES server developed and maintained by the MSL Operations
Product Generation Subsystem (OPGS) Team. The set of localized
data in the PLACES server included rover and site location data
for a limited set of localization points determined by tracing
the rover traverse on high resolution maps, combined a subset
of telemetry products to create a more complete set of location
points. Because the telemetry products used in this process
included only image headers and mobility summaries, containing
rover location during non-motion periods, and did not include
data from the high-rate mobility history products containing
rover location during motion periods, these SPKs do not provide
real data during motion but instead provide interpolated
values.
In global context the data provided in these SPKs is
significantly more accurate than telemetered rover position
estimated on-board. Because of this these SPKs should be
preferred to the telemetry-based rover path SPKs.
Telemetry-Based Rover path and site locations SPKs
--------------------------------------------------
The telemetry-based rover path and site location SPK files
contain the locations of the sites along the path relative to
the landing site and location of the rover relative to these
sites.
These SPKs were created using telemetry data available in the
PLACES server developed and maintained by the MSL Operations
Product Generation Subsystem (OPGS) Team. The set of telemetry
data in the PLACES server included rover and site location data
from only a subset of telemetry products containing such
information. Specifically, it included data from the product
and image headers and mobility summaries, containing rover
location during non-motion periods, and did not include data
from the high-rate mobility history products containing rover
location during motion periods. For this reason, these SPKs do
not provide real data during motion but instead provide
interpolated values.
Because data provided in these SPKs is based on telemetered
rover position estimated on-board, these SPKs are only as
accurate as that estimate, which, depending on the traverse
distances, slippage and sliding, can off by meters.
Solar System planets and satellites ephemeris SPKs
--------------------------------------------------
The DE425 planetary ephemeris and MAR085 Martian satellite
ephemeris SPK files included in this data set contain
ephemeris data for the Solar System planet barycenters, Sun,
Mercury, Venus, Earth, Moon, Mars, and Martian moons. These
versions of ephemerides were officially used by the project
during mission operations. The internal comments included within
these SPK files provide detailed accuracy information.
Rover structures and instruments locations SPK
----------------------------------------------
The MSL structures SPK file included in this archive provides
relative locations of selected rover structures and instruments
such as Remote Sensing Mast (RSM), Robotic Arm (RA), and
cameras. The data included in the file are based of dimensions
from the spacecraft engineering drawings and CAHVORE camera
model files.
CK Files
========
Four kinds of C-kernel files are provided in this archive:
-- cruise orientation CKs
-- EDL orientation CK
-- rover orientation CKs
-- RSM, RA, and HGA orientation CKs
Each kind of file is briefly described below; more information is
available in the file ``data/ck/ckinfo.txt''.
Cruise orientation CKs
----------------------
The cruise orientation CK files contain the reconstructed
cruise orientation determined by the MSL ACS Team and the MSL
NAV Team, JPL.
The set of CKs provided by the MSL ACS Team includes a CK with
complete cruise orientation based on H-vector direction without
modeling spin, a CK with fully reconstructed orientation based
on real-time quaternions covering only communication periods, a
CK with high-rate high-accuracy orientation covering only a few
very short periods during attitude maneuvers, and a CK with
modeled orientation covering only non-communication periods.
The CK provided by the MSL NAV team contains fully reconstructed
orientation based on H-vector direction and NAV de-spinned
tracking data, covering only communication periods.
EDL orientation CK
------------------
The EDL orientation CK file contains the reconstructed EDL
orientation determined by the MSL EDL Team, JPL. The informal
accuracy for the MSL EDL orientation reconstruction is TBD.
Rover orientation CKs
---------------------
The rover orientation CK files contain the orientation of the
rover relative to the local level frame.
These CKs were created using telemetry data available in the
PLACES server developed and maintained by the MSL OPGS Team.
The set of telemetry data in the PLACES server included rover
orientation data only from a subset of telemetry products
containing such information. Specifically, it included data
from the product and image headers and mobility summaries,
containing rover orientation during non-motion periods, and did
not include data from the high-rate mobility history products,
containing rover orientation during motion periods. For this
reason, these CKs do not provide real data during motion but
instead provide interpolated values.
Due to incomplete source data these CKs have gaps in coverage,
which can be closed, if needed, using the CKSPANIT utility
program.
RSM, RA, and HGA orientation CKs
--------------------------------
The rover structure orientation CK files contain the
orientation of the RSM, RA, and High Gain Antenna (HGA)
relative to the rover frame.
These CKs were created using telemetry data available in the
PLACES server developed and maintained by the MSL OPGS Team.
The set of telemetry data in the PLACES server included
structure articulation angle data from only a subset of
telemetry products containing such information. Specifically,
it included data from the product and image headers and
articulation summaries, containing structure articulation
angles during non-articulation periods, and did not include
data from the high-rate articulation history products,
containing structure articulation angles during articulation
periods. For this reason, these CKs do not provide real data
during articulation but instead provide interpolated values.
The sets of CKs for RSM and RA include CKs based on encoder
angles (less accurate but more complete) and CKs based on
resolver angles (more accurate but less complete).
While RSM and HGA CKs based on resolver angles provide accurate
orientation matching that computed in the flight software, the
RA CKs do not because the simple forward kinematics approach
implemented using these CKs and corresponding frame chains does
not model flexing of the RA which can lead to end point
orientation errors of a degree or more for some RA
configurations.
Due to incomplete source data these CKs have gaps in coverage,
which can be closed, if needed, using the CKSPANIT utility
program.
PCK Files
=========
PCK files provide size, shape and orientation data for ``target''
bodies such as Mars. A description of these data items and
reference to their source is provided inside the PCK file, which
is a simple text file that can be viewed using any word
processor, text editor or text display utility.
This data set includes the generic PCK file based on the
IAU/IAG/COSPAR values published in 2000.
More information about the PCK files included in this data set is
available in the file ``data/pck/pckinfo.txt''.
FK Files
========
Frames kernel files provide specifications for how one reference
frame is defined relative to another frame. A description of
these specifications and references to their source is provided
inside the FK file, which is a simple text file that can be
viewed using any word processor, text editor or text display
utility.
The MSL FK provided in this data set contains the complete set of
frame definitions for the rover, its structures such as mast,
arm, and antennas, and all of its science instruments. Meta
information provided in the comments included in this file
consists of the frame definitions, description of the frame
relationships, source of and accuracy of the mounting alignment
information, etc.
More information about the MSL FK files is available in the file
``data/fk/fkinfo.txt''.
IK Files
========
Instrument kernel files provide specifications for geometric
parameters and--where applicable--field-of-view size, shape and
orientation for the named instruments. Metadata describing these
estimates are provided in each IK file included in this archive.
Parameter values were determined from pre-launch measurements,
instrument parameters specification documents, and in some cases
from analysis of in-flight calibration data. The accuracy
estimates for these data vary from instrument to instrument and,
where available, are included in the IK internal comments.
This data set includes IK files for all rover cameras, a few
other rover-mounted instruments, and all cruise stage, descent
stage and rover mounted antennas.
Because the sets of geometric parameters included in the IKs vary
from instrument to instrument users are encouraged to carefully
examine the IKs before using them.
More information about MSL IK files is available in the file
``data/ik/ikinfo.txt''.
SCLK Files
==========
Spacecraft Clock kernel files provide a tabulation of data needed
for converting time measurements between ephemeris time (ET) and
spacecraft clock time (SCLK). For surface missions like MSL SCLK
kernel files are also used to provide data for conversions between
ET and Local Mean Solar Time (LMST).
The ``data/sclk/sclkinfo.txt'' file provides names of and/or
explains naming convention for each of the SCLK types provided in
this data set.
On-board Clock Correlation SCLKs
--------------------------------
These SCLK files provide a tabulation of data needed for
converting time measurements between ephemeris time (ET) and
MSL spacecraft clock time (SCLK). They are made from similar
files -- SCLK/SCET file, or SCLKvSCET file -- produced by
another mission entity.
The official on-board correlation SCLK files used in operations
and included in this data set provide correlation that is
incorrect in an absolute sense by as much as 3 minutes during
some periods (e.g. in the middle of cruise). The error stems
from a combination of reasons: the spacecraft generated too
few time correlation packets, the specifics of the process used
to derive the correlation function, the requirements for
backward compatibility between correlation versions imposed by
the ground system tools, and the requirement to minimize the
deployment of the new correlation in the ground data system.
An improved SCLK file for the on-board clock correlation
included in this data was made to specifically fix correlation
during cruise where large time correlation errors translated to
large attitude knowledge errors due to the spacecraft spin.
This SCLK kernel is accurate to a 10-30 milliseconds before
February 2012, to better than 5 milliseconds from February
through July 2012, and to about a millisecond for August 2012.
SPICE software does not prohibit an SCLK file from being used
for time conversions occurring for ``future times'' (or more
accurately, for epochs that occur later than the epoch of the
last telemetry data used in producing the last correlation
coefficients found in the SCLK file). Such ``predict'' time
conversions are likely to be inaccurate (changed somewhat) once
the epoch of interest has been passed.
Local Mean Solar Time (LMST) SCLK files
---------------------------------------
These SCLK files provide a way of converting between the Local
Mean Solar Time (LMST) time system used during surface
operations and other time systems. LMST was introduced as a
replacement of the Local True Solar Time (LTST) because a time
system with a constant duration of a second was needed for use
in the planning and sequencing processes. The LMST is
essentially a linear approximation of the local true solar time
with the rate set equal to the mean Mars local second duration
and the initial reference point set to LMST midnight of the
landing SOL. Due to ellipticity of Mars orbit this
approximation is periodic and deviates from the LTST by as much
as 50 minutes during Martian year. The difference between LTST
and LMST is illustrated by this table:
LTST LMST
---------------------- ----------------------
LTST-SOL-0001-12:00:00 LMST-SOL-0001-11:26:43
LTST-SOL-0010-12:00:00 LMST-SOL-0010-11:25:20
LTST-SOL-0020-12:00:00 LMST-SOL-0020-11:23:52
LTST-SOL-0030-12:00:00 LMST-SOL-0030-11:22:34
LTST-SOL-0040-12:00:00 LMST-SOL-0040-11:21:27
LTST-SOL-0050-12:00:00 LMST-SOL-0050-11:20:36
LTST-SOL-0060-12:00:00 LMST-SOL-0060-11:20:05
LTST-SOL-0070-12:00:00 LMST-SOL-0070-11:20:00
LTST-SOL-0080-12:00:00 LMST-SOL-0080-11:20:24
LTST-SOL-0090-12:00:00 LMST-SOL-0090-11:21:23
LTST-SOL-0100-12:00:00 LMST-SOL-0100-11:22:59
LTST-SOL-0110-12:00:00 LMST-SOL-0110-11:25:18
LTST-SOL-0120-12:00:00 LMST-SOL-0120-11:28:23
LTST-SOL-0130-12:00:00 LMST-SOL-0130-11:32:14
LTST-SOL-0140-12:00:00 LMST-SOL-0140-11:36:51
LTST-SOL-0150-12:00:00 LMST-SOL-0150-11:42:13
LTST-SOL-0160-12:00:00 LMST-SOL-0160-11:48:14
LTST-SOL-0170-12:00:00 LMST-SOL-0170-11:54:47
LTST-SOL-0180-12:00:00 LMST-SOL-0180-12:01:42
LTST-SOL-0190-12:00:00 LMST-SOL-0190-12:08:47
LTST-SOL-0200-12:00:00 LMST-SOL-0200-12:15:49
LTST-SOL-0210-12:00:00 LMST-SOL-0210-12:22:35
LTST-SOL-0220-12:00:00 LMST-SOL-0220-12:28:53
LTST-SOL-0230-12:00:00 LMST-SOL-0230-12:34:32
LTST-SOL-0240-12:00:00 LMST-SOL-0240-12:39:26
LTST-SOL-0250-12:00:00 LMST-SOL-0250-12:43:29
LTST-SOL-0260-12:00:00 LMST-SOL-0260-12:46:39
LTST-SOL-0270-12:00:00 LMST-SOL-0270-12:48:56
LTST-SOL-0280-12:00:00 LMST-SOL-0280-12:50:20
LTST-SOL-0290-12:00:00 LMST-SOL-0290-12:50:56
LTST-SOL-0300-12:00:00 LMST-SOL-0300-12:50:46
LTST-SOL-0310-12:00:00 LMST-SOL-0310-12:49:54
LTST-SOL-0320-12:00:00 LMST-SOL-0320-12:48:27
LTST-SOL-0330-12:00:00 LMST-SOL-0330-12:46:28
LTST-SOL-0340-12:00:00 LMST-SOL-0340-12:44:02
LTST-SOL-0350-12:00:00 LMST-SOL-0350-12:41:13
LTST-SOL-0360-12:00:00 LMST-SOL-0360-12:38:07
LTST-SOL-0370-12:00:00 LMST-SOL-0370-12:34:46
LTST-SOL-0380-12:00:00 LMST-SOL-0380-12:31:15
LTST-SOL-0390-12:00:00 LMST-SOL-0390-12:27:38
LTST-SOL-0400-12:00:00 LMST-SOL-0400-12:23:57
LTST-SOL-0410-12:00:00 LMST-SOL-0410-12:20:15
LTST-SOL-0420-12:00:00 LMST-SOL-0420-12:16:37
LTST-SOL-0430-12:00:00 LMST-SOL-0430-12:13:04
LTST-SOL-0440-12:00:00 LMST-SOL-0440-12:09:38
LTST-SOL-0450-12:00:00 LMST-SOL-0450-12:06:21
LTST-SOL-0460-12:00:00 LMST-SOL-0460-12:03:14
LTST-SOL-0470-12:00:00 LMST-SOL-0470-12:00:19
LTST-SOL-0480-12:00:00 LMST-SOL-0480-11:57:37
LTST-SOL-0490-12:00:00 LMST-SOL-0490-11:55:06
LTST-SOL-0500-12:00:00 LMST-SOL-0500-11:52:49
LTST-SOL-0510-12:00:00 LMST-SOL-0510-11:50:44
LTST-SOL-0520-12:00:00 LMST-SOL-0520-11:48:49
LTST-SOL-0530-12:00:00 LMST-SOL-0530-11:47:05
LTST-SOL-0540-12:00:00 LMST-SOL-0540-11:45:30
LTST-SOL-0550-12:00:00 LMST-SOL-0550-11:44:01
LTST-SOL-0560-12:00:00 LMST-SOL-0560-11:42:37
LTST-SOL-0570-12:00:00 LMST-SOL-0570-11:41:17
LTST-SOL-0580-12:00:00 LMST-SOL-0580-11:39:57
LTST-SOL-0590-12:00:00 LMST-SOL-0590-11:38:38
LTST-SOL-0600-12:00:00 LMST-SOL-0600-11:37:17
LTST-SOL-0610-12:00:00 LMST-SOL-0610-11:35:53
LTST-SOL-0620-12:00:00 LMST-SOL-0620-11:34:27
LTST-SOL-0630-12:00:00 LMST-SOL-0630-11:32:57
LTST-SOL-0640-12:00:00 LMST-SOL-0640-11:31:23
LTST-SOL-0650-12:00:00 LMST-SOL-0650-11:29:48
LTST-SOL-0660-12:00:00 LMST-SOL-0660-11:28:11
LTST-SOL-0670-12:00:00 LMST-SOL-0670-11:26:36
LTST-SOL-0680-12:00:00 LMST-SOL-0680-11:25:03
LTST-SOL-0690-12:00:00 LMST-SOL-0690-11:23:36
LTST-SOL-0700-12:00:00 LMST-SOL-0700-11:22:19
LTST-SOL-0710-12:00:00 LMST-SOL-0710-11:21:14
LTST-SOL-0720-12:00:00 LMST-SOL-0720-11:20:26
LTST-SOL-0730-12:00:00 LMST-SOL-0730-11:20:00
LTST-SOL-0740-12:00:00 LMST-SOL-0740-11:19:58
LTST-SOL-0750-12:00:00 LMST-SOL-0750-11:20:27
LTST-SOL-0760-12:00:00 LMST-SOL-0760-11:21:30
LTST-SOL-0770-12:00:00 LMST-SOL-0770-11:23:13
LTST-SOL-0780-12:00:00 LMST-SOL-0780-11:25:38
LTST-SOL-0790-12:00:00 LMST-SOL-0790-11:28:49
LTST-SOL-0800-12:00:00 LMST-SOL-0800-11:32:47
LTST-SOL-0810-12:00:00 LMST-SOL-0810-11:37:32
LTST-SOL-0820-12:00:00 LMST-SOL-0820-11:43:00
LTST-SOL-0830-12:00:00 LMST-SOL-0830-11:49:07
LTST-SOL-0840-12:00:00 LMST-SOL-0840-11:55:45
LTST-SOL-0850-12:00:00 LMST-SOL-0850-12:02:43
LTST-SOL-0860-12:00:00 LMST-SOL-0860-12:09:49
LTST-SOL-0870-12:00:00 LMST-SOL-0870-12:16:50
LTST-SOL-0880-12:00:00 LMST-SOL-0880-12:23:33
LTST-SOL-0890-12:00:00 LMST-SOL-0890-12:29:47
LTST-SOL-0900-12:00:00 LMST-SOL-0900-12:35:21
LTST-SOL-0910-12:00:00 LMST-SOL-0910-12:40:08
LTST-SOL-0920-12:00:00 LMST-SOL-0920-12:44:04
LTST-SOL-0930-12:00:00 LMST-SOL-0930-12:47:06
LTST-SOL-0940-12:00:00 LMST-SOL-0940-12:49:15
LTST-SOL-0950-12:00:00 LMST-SOL-0950-12:50:32
LTST-SOL-0960-12:00:00 LMST-SOL-0960-12:51:01
LTST-SOL-0970-12:00:00 LMST-SOL-0970-12:50:45
LTST-SOL-0980-12:00:00 LMST-SOL-0980-12:49:48
LTST-SOL-0990-12:00:00 LMST-SOL-0990-12:48:16
LTST-SOL-1000-12:00:00 LMST-SOL-1000-12:46:12
LTST-SOL-1010-12:00:00 LMST-SOL-1010-12:43:43
LTST-SOL-1020-12:00:00 LMST-SOL-1020-12:40:51
LTST-SOL-1030-12:00:00 LMST-SOL-1030-12:37:42
LTST-SOL-1040-12:00:00 LMST-SOL-1040-12:34:20
LTST-SOL-1050-12:00:00 LMST-SOL-1050-12:30:48
LTST-SOL-1060-12:00:00 LMST-SOL-1060-12:27:09
LTST-SOL-1070-12:00:00 LMST-SOL-1070-12:23:28
LTST-SOL-1080-12:00:00 LMST-SOL-1080-12:19:48
LTST-SOL-1090-12:00:00 LMST-SOL-1090-12:16:10
LTST-SOL-1100-12:00:00 LMST-SOL-1100-12:12:37
LTST-SOL-1110-12:00:00 LMST-SOL-1110-12:09:11
LTST-SOL-1120-12:00:00 LMST-SOL-1120-12:05:56
LTST-SOL-1130-12:00:00 LMST-SOL-1130-12:02:51
LTST-SOL-1140-12:00:00 LMST-SOL-1140-11:59:57
LTST-SOL-1150-12:00:00 LMST-SOL-1150-11:57:17
LTST-SOL-1160-12:00:00 LMST-SOL-1160-11:54:48
LTST-SOL-1170-12:00:00 LMST-SOL-1170-11:52:33
LTST-SOL-1180-12:00:00 LMST-SOL-1180-11:50:29
LTST-SOL-1190-12:00:00 LMST-SOL-1190-11:48:36
LTST-SOL-1200-12:00:00 LMST-SOL-1200-11:46:54
LTST-SOL-1210-12:00:00 LMST-SOL-1210-11:45:19
LTST-SOL-1220-12:00:00 LMST-SOL-1220-11:43:52
LTST-SOL-1230-12:00:00 LMST-SOL-1230-11:42:29
LTST-SOL-1240-12:00:00 LMST-SOL-1240-11:41:09
LTST-SOL-1250-12:00:00 LMST-SOL-1250-11:39:50
LTST-SOL-1260-12:00:00 LMST-SOL-1260-11:38:30
LTST-SOL-1270-12:00:00 LMST-SOL-1270-11:37:09
LTST-SOL-1280-12:00:00 LMST-SOL-1280-11:35:44
LTST-SOL-1290-12:00:00 LMST-SOL-1290-11:34:16
LTST-SOL-1300-12:00:00 LMST-SOL-1300-11:32:46
LTST-SOL-1310-12:00:00 LMST-SOL-1310-11:31:12
LTST-SOL-1320-12:00:00 LMST-SOL-1320-11:29:36
LTST-SOL-1330-12:00:00 LMST-SOL-1330-11:27:59
LTST-SOL-1340-12:00:00 LMST-SOL-1340-11:26:23
LTST-SOL-1350-12:00:00 LMST-SOL-1350-11:24:51
LTST-SOL-1360-12:00:00 LMST-SOL-1360-11:23:25
LTST-SOL-1370-12:00:00 LMST-SOL-1370-11:22:09
LTST-SOL-1380-12:00:00 LMST-SOL-1380-11:21:06
LTST-SOL-1390-12:00:00 LMST-SOL-1390-11:20:20
LTST-SOL-1400-12:00:00 LMST-SOL-1400-11:19:56
LTST-SOL-1410-12:00:00 LMST-SOL-1410-11:19:58
LTST-SOL-1420-12:00:00 LMST-SOL-1420-11:20:31
LTST-SOL-1430-12:00:00 LMST-SOL-1430-11:21:40
LTST-SOL-1440-12:00:00 LMST-SOL-1440-11:23:28
LTST-SOL-1450-12:00:00 LMST-SOL-1450-11:25:58
LTST-SOL-1460-12:00:00 LMST-SOL-1460-11:29:15
LTST-SOL-1470-12:00:00 LMST-SOL-1470-11:33:20
LTST-SOL-1480-12:00:00 LMST-SOL-1480-11:38:10
LTST-SOL-1490-12:00:00 LMST-SOL-1490-11:43:44
LTST-SOL-1500-12:00:00 LMST-SOL-1500-11:49:56
LTST-SOL-1510-12:00:00 LMST-SOL-1510-11:56:37
LTST-SOL-1520-12:00:00 LMST-SOL-1520-12:03:36
LTST-SOL-1530-12:00:00 LMST-SOL-1530-12:10:43
LTST-SOL-1540-12:00:00 LMST-SOL-1540-12:17:42
LTST-SOL-1550-12:00:00 LMST-SOL-1550-12:24:22
LTST-SOL-1560-12:00:00 LMST-SOL-1560-12:30:31
LTST-SOL-1570-12:00:00 LMST-SOL-1570-12:36:00
LTST-SOL-1580-12:00:00 LMST-SOL-1580-12:40:41
LTST-SOL-1590-12:00:00 LMST-SOL-1590-12:44:30
LTST-SOL-1600-12:00:00 LMST-SOL-1600-12:47:25
LTST-SOL-1610-12:00:00 LMST-SOL-1610-12:49:27
LTST-SOL-1620-12:00:00 LMST-SOL-1620-12:50:38
LTST-SOL-1630-12:00:00 LMST-SOL-1630-12:51:00
LTST-SOL-1640-12:00:00 LMST-SOL-1640-12:50:38
LTST-SOL-1650-12:00:00 LMST-SOL-1650-12:49:37
LTST-SOL-1660-12:00:00 LMST-SOL-1660-12:48:00
LTST-SOL-1670-12:00:00 LMST-SOL-1670-12:45:53
LTST-SOL-1680-12:00:00 LMST-SOL-1680-12:43:20
LTST-SOL-1690-12:00:00 LMST-SOL-1690-12:40:26
LTST-SOL-1700-12:00:00 LMST-SOL-1700-12:37:15
LTST-SOL-1710-12:00:00 LMST-SOL-1710-12:33:51
LTST-SOL-1720-12:00:00 LMST-SOL-1720-12:30:18
LTST-SOL-1730-12:00:00 LMST-SOL-1730-12:26:40
LTST-SOL-1740-12:00:00 LMST-SOL-1740-12:22:59
LTST-SOL-1750-12:00:00 LMST-SOL-1750-12:19:18
LTST-SOL-1760-12:00:00 LMST-SOL-1760-12:15:41
LTST-SOL-1770-12:00:00 LMST-SOL-1770-12:12:10
LTST-SOL-1780-12:00:00 LMST-SOL-1780-12:08:46
LTST-SOL-1790-12:00:00 LMST-SOL-1790-12:05:32
LTST-SOL-1800-12:00:00 LMST-SOL-1800-12:02:27
LTST-SOL-1810-12:00:00 LMST-SOL-1810-11:59:36
LTST-SOL-1820-12:00:00 LMST-SOL-1820-11:56:57
LTST-SOL-1830-12:00:00 LMST-SOL-1830-11:54:30
LTST-SOL-1840-12:00:00 LMST-SOL-1840-11:52:16
LTST-SOL-1850-12:00:00 LMST-SOL-1850-11:50:14
LTST-SOL-1860-12:00:00 LMST-SOL-1860-11:48:23
LTST-SOL-1870-12:00:00 LMST-SOL-1870-11:46:41
LTST-SOL-1880-12:00:00 LMST-SOL-1880-11:45:08
LTST-SOL-1890-12:00:00 LMST-SOL-1890-11:43:41
LTST-SOL-1900-12:00:00 LMST-SOL-1900-11:42:18
LTST-SOL-1910-12:00:00 LMST-SOL-1910-11:40:58
LTST-SOL-1920-12:00:00 LMST-SOL-1920-11:39:39
LTST-SOL-1930-12:00:00 LMST-SOL-1930-11:38:20
LTST-SOL-1940-12:00:00 LMST-SOL-1940-11:36:58
LTST-SOL-1950-12:00:00 LMST-SOL-1950-11:35:34
LTST-SOL-1960-12:00:00 LMST-SOL-1960-11:34:06
LTST-SOL-1970-12:00:00 LMST-SOL-1970-11:32:35
LTST-SOL-1980-12:00:00 LMST-SOL-1980-11:31:00
LTST-SOL-1990-12:00:00 LMST-SOL-1990-11:29:24
LTST-SOL-2000-12:00:00 LMST-SOL-2000-11:27:47
LTST-SOL-2010-12:00:00 LMST-SOL-2010-11:26:12
LTST-SOL-2020-12:00:00 LMST-SOL-2020-11:24:41
LTST-SOL-2030-12:00:00 LMST-SOL-2030-11:23:16
LTST-SOL-2040-12:00:00 LMST-SOL-2040-11:22:01
LTST-SOL-2050-12:00:00 LMST-SOL-2050-11:21:01
LTST-SOL-2060-12:00:00 LMST-SOL-2060-11:20:18
LTST-SOL-2070-12:00:00 LMST-SOL-2070-11:19:57
LTST-SOL-2080-12:00:00 LMST-SOL-2080-11:20:03
LTST-SOL-2090-12:00:00 LMST-SOL-2090-11:20:41
LTST-SOL-2100-12:00:00 LMST-SOL-2100-11:21:55
LTST-SOL-2110-12:00:00 LMST-SOL-2110-11:23:48
LTST-SOL-2120-12:00:00 LMST-SOL-2120-11:26:26
LTST-SOL-2130-12:00:00 LMST-SOL-2130-11:29:49
LTST-SOL-2140-12:00:00 LMST-SOL-2140-11:34:00
LTST-SOL-2150-12:00:00 LMST-SOL-2150-11:38:55
LTST-SOL-2160-12:00:00 LMST-SOL-2160-11:44:34
LTST-SOL-2170-12:00:00 LMST-SOL-2170-11:50:50
LTST-SOL-2180-12:00:00 LMST-SOL-2180-11:57:34
LTST-SOL-2190-12:00:00 LMST-SOL-2190-12:04:35
LTST-SOL-2200-12:00:00 LMST-SOL-2200-12:11:40
LTST-SOL-2210-12:00:00 LMST-SOL-2210-12:18:38
LTST-SOL-2220-12:00:00 LMST-SOL-2220-12:25:14
LTST-SOL-2230-12:00:00 LMST-SOL-2230-12:31:17
LTST-SOL-2240-12:00:00 LMST-SOL-2240-12:36:39
LTST-SOL-2250-12:00:00 LMST-SOL-2250-12:41:13
LTST-SOL-2260-12:00:00 LMST-SOL-2260-12:44:54
LTST-SOL-2270-12:00:00 LMST-SOL-2270-12:47:42
LTST-SOL-2280-12:00:00 LMST-SOL-2280-12:49:37
LTST-SOL-2290-12:00:00 LMST-SOL-2290-12:50:41
LTST-SOL-2300-12:00:00 LMST-SOL-2300-12:50:57
LTST-SOL-2310-12:00:00 LMST-SOL-2310-12:50:30
LTST-SOL-2320-12:00:00 LMST-SOL-2320-12:49:23
LTST-SOL-2330-12:00:00 LMST-SOL-2330-12:47:41
LTST-SOL-2340-12:00:00 LMST-SOL-2340-12:45:30
LTST-SOL-2350-12:00:00 LMST-SOL-2350-12:42:55
LTST-SOL-2360-12:00:00 LMST-SOL-2360-12:39:58
LTST-SOL-2370-12:00:00 LMST-SOL-2370-12:36:45
LTST-SOL-2380-12:00:00 LMST-SOL-2380-12:33:20
LTST-SOL-2390-12:00:00 LMST-SOL-2390-12:29:46
LTST-SOL-2400-12:00:00 LMST-SOL-2400-12:26:07
LTST-SOL-2410-12:00:00 LMST-SOL-2410-12:22:27
LTST-SOL-2420-12:00:00 LMST-SOL-2420-12:18:47
LTST-SOL-2430-12:00:00 LMST-SOL-2430-12:15:10
LTST-SOL-2440-12:00:00 LMST-SOL-2440-12:11:40
LTST-SOL-2450-12:00:00 LMST-SOL-2450-12:08:18
LTST-SOL-2460-12:00:00 LMST-SOL-2460-12:05:05
LTST-SOL-2470-12:00:00 LMST-SOL-2470-12:02:03
LTST-SOL-2480-12:00:00 LMST-SOL-2480-11:59:14
LTST-SOL-2490-12:00:00 LMST-SOL-2490-11:56:36
LTST-SOL-2500-12:00:00 LMST-SOL-2500-11:54:11
LTST-SOL-2510-12:00:00 LMST-SOL-2510-11:51:59
LTST-SOL-2520-12:00:00 LMST-SOL-2520-11:49:58
LTST-SOL-2530-12:00:00 LMST-SOL-2530-11:48:08
LTST-SOL-2540-12:00:00 LMST-SOL-2540-11:46:28
LTST-SOL-2550-12:00:00 LMST-SOL-2550-11:44:55
LTST-SOL-2560-12:00:00 LMST-SOL-2560-11:43:29
LTST-SOL-2570-12:00:00 LMST-SOL-2570-11:42:07
LTST-SOL-2580-12:00:00 LMST-SOL-2580-11:40:47
LTST-SOL-2590-12:00:00 LMST-SOL-2590-11:39:28
LTST-SOL-2600-12:00:00 LMST-SOL-2600-11:38:08
LTST-SOL-2610-12:00:00 LMST-SOL-2610-11:36:46
LTST-SOL-2620-12:00:00 LMST-SOL-2620-11:35:21
LTST-SOL-2630-12:00:00 LMST-SOL-2630-11:33:53
LTST-SOL-2640-12:00:00 LMST-SOL-2640-11:32:21
LTST-SOL-2650-12:00:00 LMST-SOL-2650-11:30:46
LTST-SOL-2660-12:00:00 LMST-SOL-2660-11:29:10
LTST-SOL-2670-12:00:00 LMST-SOL-2670-11:27:33
LTST-SOL-2680-12:00:00 LMST-SOL-2680-11:25:57
LTST-SOL-2690-12:00:00 LMST-SOL-2690-11:24:26
LTST-SOL-2700-12:00:00 LMST-SOL-2700-11:23:03
LTST-SOL-2710-12:00:00 LMST-SOL-2710-11:21:50
LTST-SOL-2720-12:00:00 LMST-SOL-2720-11:20:51
LTST-SOL-2730-12:00:00 LMST-SOL-2730-11:20:12
LTST-SOL-2740-12:00:00 LMST-SOL-2740-11:19:55
LTST-SOL-2750-12:00:00 LMST-SOL-2750-11:20:05
LTST-SOL-2760-12:00:00 LMST-SOL-2760-11:20:48
LTST-SOL-2770-12:00:00 LMST-SOL-2770-11:22:07
LTST-SOL-2780-12:00:00 LMST-SOL-2780-11:24:07
LTST-SOL-2790-12:00:00 LMST-SOL-2790-11:26:51
LTST-SOL-2800-12:00:00 LMST-SOL-2800-11:30:22
LTST-SOL-2810-12:00:00 LMST-SOL-2810-11:34:39
LTST-SOL-2820-12:00:00 LMST-SOL-2820-11:39:42
LTST-SOL-2830-12:00:00 LMST-SOL-2830-11:45:27
LTST-SOL-2840-12:00:00 LMST-SOL-2840-11:51:47
LTST-SOL-2850-12:00:00 LMST-SOL-2850-11:58:34
LTST-SOL-2860-12:00:00 LMST-SOL-2860-12:05:36
LTST-SOL-2870-12:00:00 LMST-SOL-2870-12:12:41
LTST-SOL-2880-12:00:00 LMST-SOL-2880-12:19:36
LTST-SOL-2890-12:00:00 LMST-SOL-2890-12:26:08
LTST-SOL-2900-12:00:00 LMST-SOL-2900-12:32:06
LTST-SOL-2910-12:00:00 LMST-SOL-2910-12:37:21
LTST-SOL-2920-12:00:00 LMST-SOL-2920-12:41:48
LTST-SOL-2930-12:00:00 LMST-SOL-2930-12:45:22
LTST-SOL-2940-12:00:00 LMST-SOL-2940-12:48:02
LTST-SOL-2950-12:00:00 LMST-SOL-2950-12:49:49
LTST-SOL-2960-12:00:00 LMST-SOL-2960-12:50:46
LTST-SOL-2970-12:00:00 LMST-SOL-2970-12:50:55
LTST-SOL-2980-12:00:00 LMST-SOL-2980-12:50:22
LTST-SOL-2990-12:00:00 LMST-SOL-2990-12:49:10
LTST-SOL-3000-12:00:00 LMST-SOL-3000-12:47:24
LSK Files
=========
Leapseconds kernel files provide a tabulation of ``leapseconds''
and some other terms used in converting time measurements between
ephemeris time (ET) and Universal Time (UTC). ``Spacecraft Event
Time'' (SCET) is the commonly used name for UTC events measured
at the spacecraft.
Metadata describing how the LSK data are obtained or computed is
contained inside the LSK text file. The time conversion provided
by SPICE LSK files is accurate to approximately 0.000030 seconds.
More information about the LSK files is available in the file
``data/lsk/lskinfo.txt''.
EK Files
========
The MSL project did not produce any EK files; therefore, no EKs
are included in this data set.
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