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: 3/4/2023
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 03/06/2023 06:44:59 -70.54,-105.65 103.67 03/06/2023 06:46:10 -70.41,-104.67 103.85 39.37 71
2 03/06/2023 07:35:35 70.01, 62.49 75.76 03/06/2023 07:35:42 70.03, 62.43 75.78 3.35 7
3 03/06/2023 08:26:17 -69.92,-130.06 104.36 03/06/2023 08:25:12 -69.92,-130.09 104.34 1.34 65
4 03/08/2023 23:01:44 -70.11, 10.80 105.18 03/08/2023 23:02:40 -70.13, 10.81 105.16 2.73 56
5 03/08/2023 23:52:28 70.00, 178.27 74.70 03/08/2023 23:52:07 70.02, 178.30 74.72 2.90 21
6 03/09/2023 00:42:57 -69.22, -13.27 106.14 03/09/2023 00:41:49 -69.25, -15.11 106.02 72.63 68
7 03/11/2023 15:18:37 -70.05, 126.65 106.29 03/11/2023 15:19:06 -70.07, 126.62 106.28 2.38 29
8 03/11/2023 16:09:21 69.95, -65.88 73.59 03/11/2023 16:08:33 69.96, -65.89 73.61 1.46 48
9 03/14/2023 06:44:49 70.16, 74.94 72.79 03/14/2023 06:46:00 70.17, 75.03 72.78 3.84 71
10 03/14/2023 07:35:30 -70.01,-117.51 107.39 03/14/2023 07:35:31 -70.01,-117.56 107.39 1.87 1
11 03/14/2023 08:26:12 69.80, 50.11 72.38 03/14/2023 08:24:59 69.84, 49.84 72.44 11.23 73
12 03/16/2023 23:01:41 70.08,-169.17 71.64 03/16/2023 23:02:25 70.06,-169.23 71.61 3.30 44
13 03/16/2023 23:52:23 -69.98, -1.70 108.49 03/16/2023 23:51:55 -69.96, -1.74 108.51 3.16 28

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/4/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230304.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/04/2023 in txt file.

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