../ dmsp_15_ephemeris_20220515.txt 22-Jun-2023 16:38 109537 dmsp_16_ephemeris_20220515.txt 22-Jun-2023 16:38 109712 dmsp_17_ephemeris_20220515.txt 22-Jun-2023 16:38 109713 dmsp_18_ephemeris_20220515.txt 22-Jun-2023 16:38 109607