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: 8/23/2023
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 08/23/2023 23:50:45 -70.02, -1.62 121.28 08/23/2023 23:51:52 -70.03, -1.61 121.28 0.33 67
2 08/24/2023 00:41:29 69.90, 165.87 58.61 08/24/2023 00:41:19 69.93, 165.89 58.64 3.33 10
3 08/24/2023 01:32:05 -69.50, -26.22 121.80 08/24/2023 01:30:53 -69.60, -26.93 121.67 29.80 72
4 08/26/2023 16:07:40 -69.98, 114.21 120.41 08/26/2023 16:08:23 -69.98, 114.19 120.41 0.69 43
5 08/26/2023 16:58:24 69.85, -78.30 59.48 08/26/2023 16:57:50 69.88, -78.31 59.50 2.34 34
6 08/29/2023 07:34:06 70.66, 61.59 61.23 08/29/2023 07:35:15 70.56, 63.28 61.08 63.46 69
7 08/29/2023 08:24:36 -69.94,-129.97 119.51 08/29/2023 08:24:54 -69.96,-129.96 119.50 2.06 18
8 08/29/2023 09:15:20 69.82, 37.52 60.38 08/29/2023 09:14:22 69.79, 37.46 60.36 3.37 58
9 08/31/2023 23:50:50 70.00, 178.39 61.49 08/31/2023 23:51:55 70.01, 178.37 61.50 2.00 65
10 09/01/2023 00:41:32 -69.91, -14.16 118.59 09/01/2023 00:41:25 -69.91, -14.15 118.59 0.44 7
11 09/01/2023 01:32:09 69.41, 153.87 60.92 09/01/2023 01:30:58 69.47, 152.89 61.00 38.51 71
12 09/03/2023 16:07:46 69.97, -65.82 62.44 09/03/2023 16:08:25 69.99, -65.79 62.45 1.92 39
13 09/03/2023 16:58:28 -69.88, 101.64 117.65 09/03/2023 16:57:55 -69.89, 101.70 117.64 2.48 33

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/23/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230823.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 08/23/2023 in txt file.

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