../ dmsp_15_ephemeris_20101226.txt 22-Jun-2023 00:16 109381 dmsp_16_ephemeris_20101226.txt 22-Jun-2023 00:16 109285 dmsp_17_ephemeris_20101226.txt 22-Jun-2023 00:16 109350 dmsp_18_ephemeris_20101226.txt 22-Jun-2023 00:16 109488