../ dmsp_15_ephemeris_20220719.txt 22-Jun-2023 16:39 109683 dmsp_16_ephemeris_20220719.txt 22-Jun-2023 16:39 109520 dmsp_17_ephemeris_20220719.txt 22-Jun-2023 16:39 109556 dmsp_18_ephemeris_20220719.txt 22-Jun-2023 16:39 109523