Data Set Information
DATA_SET_NAME 24-COLOR ASTEROID SURVEY
DATA_SET_ID EAR-A-DBP-3-RDR-24COLOR-V2.1
NSSDC_DATA_SET_ID NULL
DATA_SET_TERSE_DESCRIPTION Photometric spectra covering the range 0.32 - 1.08 microns for 285 numbered asteroids, as published in Chapman & Gaffey (1979b) and McFadden, et al. (1984).
DATA_SET_DESCRIPTION
Data Set Overview
  =================
  This dataset is comprised of asteroid flux data measured in 26 filters
  using the McCord dual beam photometer. Of the 26 filters used for the
  full dataset, a maximum of 24 were used for any one measurement. The
  wavelength range covered is from 0.32 to 1.08 microns.
 
  Processing Level Id            : 3
  Software Flag                  : N
  Processing Start Time          : 1975
  Processing Stop Time           : 1984
 
 
  Parameters
  ==========
  Sampling Parameter Name        : WAVELENGTH
  Data Set Parameter Name        : FLUX RATIO
  Minimum Sampling Parameter     : 0.330000
  Maximum Sampling Parameter     : 1.100000
  Data Set Parameter Unit        : DIMENSIONLESS
  Noise Level                    : 2.000000
  Sampling Parameter Unit        : MICROMETER
 
 
  Data
  ====
  FLUX RATIO is defined as the ratio of two measured photon fluxes from a
  photometric or spectrometric instrument. For instance, the ratio of the
  measured spectrum of a target relative to the measured spectrum of a
  calibration standard will yield a value that is a flux ratio. This
  parameter is dimensionless.
 
 
  Ancillary Data
  ==============
 
  Atmospheric Conditions
  ----------------------
  An estimate of the quality of the observing conditions for each night of
  observing is given in the original papers, Chapman (1972) [CHAPMAN1972],
  Chapman and Gaffey (1979) [CHAPMAN&GAFFEY1979A] [CHAPMAN&GAFFEY1979B] and
  McFadden et al. (1984) [MCFADDENETAL1984].
 
  Calibration Standard
  --------------------
  The data are calibrated to flux ratio (asteroid/inferred sun) with
  reference to a set of standard stars. During the observation sessions,
  the standard stars are observed both to determine extinction corrections
  in each filter and as color standards.  Many of the standard stars used
  are A- or B- Oke/Hayes standard stars and others of the solar type.
 
  Modification History
  ====================
  As part of a general review and upgrade of current asteroid data sets,
  these data were reviewed and an additional format added. The following
  changes were made to existing files:
 
      o  The 24color.lbl file was edited slightly for grammar and
         to add the internal PDS reference keys corresponding to
         the cited references.
 
      o  The asteroid number corresponding to object 1980 AA was
         added to the 24color.tab file.
 
  In addition, a program was written and used to split the 24color.tab file
  into separate spectrum files for each observation, each with its own
  label file. These files are named by the number and name of the
  corresponding asteroid. The first two columns of each spectrum file
  indicate the specific filter wavelength and FWHM used; these are followed
  by the reflectance and uncertainty.
 
  Only one object, 1685 Toro, had two observations in the main data file.
  These are in separate files: '1685toro1' contains the data from Chapman &
  Gaffey (1979b); '1685toro2' contains the data from McFadden, et al.
  (1984).
 
  Asteroid 1865 Cerberus, which had no data recorded in the original file,
  has no individual spectrum file.
 
  No changes were made to the recorded data values.
DATA_SET_RELEASE_DATE 1993-04-05T00:00:00.000Z
START_TIME 1975-02-12T12:00:00.000Z
STOP_TIME 1981-08-28T12:00:00.000Z
MISSION_NAME SUPPORT ARCHIVES
MISSION_START_DATE 2004-03-22T12:00:00.000Z
MISSION_STOP_DATE N/A (ongoing)
TARGET_NAME 1 CERES
10 HYGIEA
1015 CHRISTA
1019 STRACKEA
1025 RIEMA
1036 GANYMED
105 ARTEMIS
1055 TYNKA
1058 GRUBBA
106 DIONE
1075 HELINA
108 HECUBA
1088 MITAKA
11 PARTHENOPE
110 LYDIA
1103 SEQUOIA
113 AMALTHEA
115 THYRA
116 SIRONA
1162 LARISSA
1172 ANEAS
1173 ANCHISES
119 ALTHAEA
1199 GELDONIA
12 VICTORIA
1208 TROILUS
121 HERMIONE
1212 FRANCETTE
122 GERDA
124 ALKESTE
1263 VARSAVIA
128 NEMESIS
1284 LATVIA
129 ANTIGONE
13 EGERIA
130 ELEKTRA
1317 SILVRETTA
1330 SPIRIDONIA
136 AUSTRIA
1364 SAFARA
139 JUEWA
14 IRENE
140 SIWA
141 LUMEN
144 VIBILIA
1449 VIRTANEN
145 ADEONA
149 MEDUSA
1493 SIGRID
15 EUNOMIA
150 NUWA
1512 OULU
1529 OTERMA
156 XANTHIPPE
1566 ICARUS
158 KORONIS
1580 BETULIA
1595 TANGA
16 PSYCHE
1620 GEOGRAPHOS
1627 IVAR
163 ERIGONE
1636 PORTER
164 EVA
1645 WATERFIELD
1656 SUOMI
166 RHODOPE
167 URDA
1685 TORO
169 ZELIA
17 THETIS
170 MARIA
1717 ARLON
1727 METTE
175 ANDROMACHE
176 IDUNA
18 MELPOMENE
181 EUCHARIS
1830 POGSON
185 EUNIKE
1862 APOLLO
19 FORTUNA
1915 QUETZALCOATL
192 NAUSIKAA
194 PROKNE
196 PHILOMELA
197 ARETE
198 AMPELLA
2 PALLAS
20 MASSALIA
200 DYNAMENE
208L ACRIMOSA
21 LUTETIA
210 ISABELLA
213 LILAEA
216 KLEOPATRA
217 EUDORA
22 KALLIOPE
220 STEPHANIA
2201 OLJATO
221 EOS
23 THALIA
230 ATHAMANTIS
236 HONORIA
24 THEMIS
243 IDA
246 ASPORINA
25 PHOCAEA
258 TYCHE
26 PROSERPINA
262 VALDA
264 LIBUSSA
268 ADOREA
27 EUTERPE
279 THULE
28 BELLONA
281 LUCRETIA
29 AMPHITRITE
293 BRASILIA
3 JUNO
30 URANIA
308 POLYXO
31 EUPHROSYNE
3102 KROK
313 CHALDAEA
32 POMONA
323 BRUCIA
324 BAMBERGA
325 HEIDELBERGA
326 TAMARA
335 ROBERTA
337 DEVOSA
338 BUDROSA
339 DOROTHEA
34 CIRCE
340 EDUARDA
341 CALIFORNIA
344 DESIDERATA
345 TERCIDINA
347 PARIANA
349 DEMBOWSKA
354 ELEONORA
356 LIGURIA
36 ATALANTE
361 BONONIA
363 PADUA
365 CORDUBA
37 FIDES
372 PALMA
374 BURGUNDIA
375 URSULA
386 SIEGENA
389 INDUSTRIA
39 LAETITIA
391 INGEBORG
4 VESTA
40 HARMONIA
402 CHLOE
403 CYANE
409 ASPASIA
41 DAPHNE
413 EDBURGA
415 PALATIA
416 VATICANA
419 AURELIA
42 ISIS
423 DIOTIMA
426 HIPPO
43 ARIADNE
433 EROS
434 HUNGARIA
435 ELLA
439 OHIO
44 NYSA
441 BATHILDE
446 AETERNITAS
45 EUGENIA
453 TEA
46 HESTIA
462 ERIPHYLA
468 LINA
471 PAPAGENA
472 ROMA
48 DORIS
481 EMITA
488 KREUSA
490 VERITAS
496 GRYPHIA
5 ASTRAEA
505 CAVA
51 NEMAUSA
510 MABELLA
511 DAVIDA
513 CENTESIMA
52 EUROPA
526 JENA
53 KALYPSO
532 HERCULINA
54 ALEXANDRA
554 PERAGA
558 CARMEN
560 DELILA
562 SALOME
563 SULEIKA
574 REGINHILD
579 SIDONIA
5797 BIVOJ
58 CONCORDIA
582 OLYMPIA
584 SEMIRAMIS
588 ACHILLES
599 LUISA
6 HEBE
60 ECHO
613 GINEVRA
617 PATROCLUS
62 ERATO
624 HEKTOR
628 CHRISTINE
63 AUSONIA
639 LATONA
64 ANGELINA
648 PIPPA
65 CYBELE
654 ZELINDA
66 MAJA
660 CRESCENTIA
674 RACHELE
676 MELITTA
68 LETO
69 HESPERIA
695 BELLA
696 LEONORA
7 IRIS
704 INTERAMNIA
71 NIOBE
712 BOLIVIANA
714 ULULA
739 MANDEVILLE
741 BOTOLPHIA
747 WINCHESTER
750 OSKAR
758 MANCUNIA
760 MASSINGA
770 BALI
772 TANETE
773 IRMINTRAUD
78 DIANA
781 KARTVELIA
782 MONTEFIORE
783 NORA
785 ZWETANA
79 EURYNOME
790 PRETORIA
8 FLORA
80 SAPPHO
801 HELWERTHIA
811 NAUHEIMA
82 ALKMENE
83 BEATRIX
839 VALBORG
84 KLIO
846 LIPPERTA
85 IO
87 SYLVIA
88 THISBE
884 PRIAMUS
887 ALINDA
89 JULIA
895 HELIO
9 METIS
90 ANTIOPE
909 ULLA
911 AGAMEMNON
92 UNDINA
925 ALPHONSINA
93 MINERVA
94 AURORA
944 HIDALGO
969 LEOCADIA
97 KLOTHO
976 BENJAMINA
ASTEROID
TARGET_TYPE ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
ASTEROID
INSTRUMENT_HOST_ID VARGBTEL
INSTRUMENT_NAME DUAL BEAM PHOTOMETER
INSTRUMENT_ID DBP
INSTRUMENT_TYPE PHOTOMETER
NODE_NAME Small Bodies
ARCHIVE_STATUS ARCHIVED
CONFIDENCE_LEVEL_NOTE
Confidence Level Overview
  =========================
  Acquisition of the 24 data points takes time; thus, a 24-point spectrum
  can be affected by the varying light curve of the asteroid, as well as by
  the changing sky conditions and instrument stability.  In most, but not
  all, cases, data were co-added from numerous rapid rotations of the
  filter wheel. Uncertainties in the relative calibration between stars and
  Alpha Lyrae may contribute an uncertainty of up to 2 percent in the
  visible and 4 percent in the infrared bands.  It is believed that this
  uncertainty is larger than other systematic errors in the data.
CITATION_DESCRIPTION Chapman, C.R., Gaffey, M., and McFadden, L., 24-color Asteroid Survey. EAR-A-DBP-3-RDR-24COLOR-V2.1. NASA Planetary Data System, 1993.
ABSTRACT_TEXT This dataset is comprised of asteroid flux data measured in 26 filters using the McCord dual beam photometer, and covering the range 0.32 - 1.08 microns for 285 numbered asteroids, as published in Chapman & Gaffey (1979b) and McFadden, et al. (1984).
PRODUCER_FULL_NAME CAROL NEESE
SEARCH/ACCESS DATA
  • SBN PSI WEBSITE