Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/16/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 04/17/2023 23:01:05 70.62,-169.90 59.94 04/17/2023 23:02:15 70.47,-168.72 59.75 46.98 70
2 04/17/2023 23:51:38 -70.06, -1.71 120.66 04/17/2023 23:51:50 -70.08, -1.65 120.65 3.23 12
3 04/18/2023 00:42:22 69.95, 165.77 59.21 04/18/2023 00:41:18 69.92, 165.78 59.19 2.63 64
4 04/20/2023 15:17:46 70.15, -53.37 58.51 04/20/2023 15:18:50 70.14, -53.33 58.49 1.81 64
5 04/20/2023 16:08:27 -70.01, 114.16 121.65 04/20/2023 16:08:20 -70.03, 114.15 121.63 2.21 7
6 04/20/2023 16:59:04 69.52, -77.81 57.84 04/20/2023 16:57:53 69.59, -78.81 57.94 39.52 71
7 04/23/2023 07:34:35 70.10, 62.49 57.56 04/23/2023 07:35:19 70.09, 62.48 57.54 1.68 44
8 04/23/2023 08:25:16 -69.96,-129.98 122.60 04/23/2023 08:24:49 -69.98,-130.04 122.58 3.14 27
9 04/25/2023 23:51:23 70.07, 178.32 56.64 04/25/2023 23:51:46 70.06, 178.31 56.62 1.95 23
10 04/26/2023 00:42:04 -69.93, -14.14 123.52 04/26/2023 00:41:16 -69.95, -14.20 123.50 3.42 48
11 04/28/2023 15:17:32 -70.37, 126.35 123.90 04/28/2023 15:18:44 -70.26, 126.84 124.03 21.92 72
12 04/28/2023 16:08:12 70.05, -65.86 55.77 04/28/2023 16:08:13 70.04, -65.83 55.75 2.18 1
13 04/28/2023 16:58:53 -69.91, 101.68 124.40 04/28/2023 16:57:43 -69.93, 101.65 124.37 3.08 70

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/16/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230416.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/16/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-9