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: 4/13/2023
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 04/15/2023 07:34:49 -70.09,-117.54 119.68 04/15/2023 07:35:20 -70.09,-117.51 119.69 1.67 31
2 04/15/2023 08:25:33 69.98, 49.94 60.20 04/15/2023 08:24:47 69.98, 49.99 60.20 2.12 46
3 04/17/2023 23:01:02 70.43,-169.59 59.73 04/17/2023 23:02:13 70.36,-168.87 59.64 28.31 71
4 04/17/2023 23:51:38 -70.02, -1.65 120.70 04/17/2023 23:51:47 -70.02, -1.71 120.70 2.22 9
5 04/18/2023 00:42:22 69.91, 165.83 59.17 04/18/2023 00:41:14 69.92, 165.78 59.18 1.67 68
6 04/20/2023 15:17:45 70.11, -53.31 58.47 04/20/2023 15:18:42 70.09, -53.35 58.45 2.30 57
7 04/20/2023 16:08:27 -70.02, 114.15 121.64 04/20/2023 16:08:11 -70.04, 114.20 121.62 2.99 16
8 04/20/2023 16:58:58 69.22, -77.38 57.53 04/20/2023 16:57:50 69.26, -79.21 57.62 72.25 68
9 04/23/2023 07:34:34 70.06, 62.55 57.51 04/23/2023 07:35:07 70.07, 62.51 57.52 2.08 33
10 04/23/2023 08:25:16 -69.97,-129.99 122.60 04/23/2023 08:24:37 -69.97,-130.01 122.60 0.81 39
11 04/25/2023 23:00:48 -70.60, 10.18 122.80 04/25/2023 23:01:58 -70.52, 11.41 122.92 46.23 70
12 04/25/2023 23:51:23 70.03, 178.39 56.60 04/25/2023 23:51:32 70.02, 178.33 56.59 2.30 9
13 04/26/2023 00:42:05 -69.93, -14.15 123.52 04/26/2023 00:41:02 -69.92, -14.19 123.53 2.29 63

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/13/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230414.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/13/2023 in txt file.

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