../ dmsp_15_ephemeris_20170102.txt 22-Jun-2023 00:33 106584 dmsp_16_ephemeris_20170102.txt 22-Jun-2023 00:33 106524 dmsp_17_ephemeris_20170102.txt 22-Jun-2023 00:33 106557 dmsp_18_ephemeris_20170102.txt 22-Jun-2023 00:33 106447