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Current Data from CelesTrak WWW (NORAD Two-Line Element Sets) Radar Calibration (~ 2 KB) All single updates of this section (RedShift format) Calsphere 1 (valid from 27/11/2023 until 27/12/2023) » more infos (NSSDC) (27/11/2023) Calsphere 2 (valid from 27/11/2023 until 27/12/2023) » more infos (NSSDC) (27/11/2023) Calsphere 4A (valid from 28/11/2023 until 28/12/2023) » more infos (NSSDC) (28/11/2023) LCS 1 (valid from 28/11/2023 until 28/12/2023) » more infos (NSSDC) (28/11/2023) OPS 8180 (RADCAT) (valid from 02/08/2012 until 01/09/2012) » more infos (NSSDC) (02/08/2012) Rigid Sphere 2 (LCS 4) (valid from 28/11/2023 until 28/12/2023) » more infos (NSSDC) (28/11/2023) SURCAL 150B (valid from 28/11/2023 until 28/12/2023) » more infos (NSSDC) (28/11/2023) SURCAL 153 (OPS 5712) (valid from 28/11/2023 until 28/12/2023) » more infos (NSSDC) (28/11/2023) SURCAL 160 (OPS 5712) (valid from 28/11/2023 until 28/12/2023) » more infos (NSSDC) (28/11/2023) TEMPSAT 1 (valid from 27/11/2023 until 27/12/2023) » more infos (NSSDC) (27/11/2023) Notes: Spacecraft is currently listed in "100 (or so) brightest special-interest satellites" at NORAD. Updates of those data on this web site will be available frequently. Archived data of satellites. Updates of those data on this web site will be available not frequently but by opportunity. » With some satellite you find a link to the mission description at the NSSDC. Each row of a single update contains the date the data is valid. You find also the last update date of the related file.