../ dmsp_15_ephemeris_20201116.txt 22-Jun-2023 00:45 109422 dmsp_16_ephemeris_20201116.txt 22-Jun-2023 00:45 109450 dmsp_17_ephemeris_20201116.txt 22-Jun-2023 00:45 109408 dmsp_18_ephemeris_20201116.txt 22-Jun-2023 00:45 109414