urn:nasa:pds:jpl.dsn.mmm:tro 18.0 1.16.0.0 Product_Collection Kahan, Daniel 2026 This collection contains monthly JPL/DSN Troposphere Media Calibration (TRK-2-23) files that can be used to calibrate radio science and other data products. The collection also includes one 'seasonal' file valid for 1972-2048 that includes seasonal global, complex, and antenna corrections that should be computed and added to the corrections derived from monthly files. 2026-07-09 18.0 This collection is updated through June 2026 2026-04-09 17.0 This collection is updated through March 2026. Also, 2016_275_2016_299_tro.csp has been superseded by 2016_275_2016_306_tro.csp. 2024_245_2024_279_tro.csp has been superseded by 2024_245_2024_275_tro.csp. 2026-01-12 16.0 This collection is updated through December 2025 2025-10-09 15.0 This collection is updated through September 2025 2025-07-09 14.0 This collection is updated through June 2025 2025-04-10 13.0 This collection is updated through March 2025 2025-01-12 12.0 This collection is updated through December 2024 2024-10-08 11.0 This collection is updated through September 2024 2024-07-07 10.0 This collection is updated through June 2024 2024-04-03 9.0 This collection is updated through March 2024 2024-01-10 8.0 This collection is updated through December 2023 2023-10-13 7.0 This collection is updated through September 2023 2023-07-10 6.0 This collection is updated through June 2023 2023-04-03 5.0 This collection is updated through March 2023 2023-01-04 4.0 This collection is updated through December 2022 2022-10-10 3.0 This collection is updated through September 2022 2022-07-06 2.0 This collection is updated through June 2022 2021-08-28 1.0 Initial version of the collection, which is expected to accumulate. The initial version contains data from 2001-01-01 through 2021-07-01 plus a single 'seasonal' file valid for 1972-2048. 2001-01-01T03:00:00.001Z 2026-07-01T03:00:00.000Z Calibration Derived NASA Deep Space Network Media Calibration Other Investigation urn:nasa:pds:context:investigation:other_investigation.media.dsn collection_to_investigation Global Positioning System Instrument Path delays from multi-frequency observations of GPS satellites are used to model path delays along the DSN-to-spacecraft radio link resulting from passage through Earth's troposphere as a function of time. urn:nasa:pds:context:instrument:dsn.media is_instrument Earth Planet urn:nasa:pds:context:target:planet.earth collection_to_target urn:nasa:pds:context:resource:resource.jpl.dsn.mmm_online has_resource urn:nasa:pds:radiosci.documentation:dsn.trk-2-23:2008-03-05 collection_to_document For pre-2008 files, consider looking at an earlier SIS in the same collection. Data This collection contains monthly JPL/DSN Troposphere Media Calibration (TRK-2-23) files that can be used to calibrate radio science and other data products. The collection also includes one 'seasonal' file valid for 1972-2048 that includes seasonal global, complex, and antenna corrections that should be computed and added to the corrections derived from monthly files. collection_tro.csv 2026-07-09T05:10:37Z 17806 cd2bb0627c03f4f8bb300c1da1769096 0 PDS DSV 1 307 Line-Feed Comma 2 0 257 Member Status 1 ASCII_String 1 LIDVID_LID 2 ASCII_LIDVID_LID 255 inventory_has_member_product