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: 7/4/2023
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 07/06/2023 23:00:48 70.49,-169.76 47.87 07/06/2023 23:01:58 70.42,-168.70 47.74 40.42 70
2 07/06/2023 23:51:22 -69.97, -1.64 132.67 07/06/2023 23:51:34 -69.97, -1.70 132.68 2.20 12
3 07/07/2023 00:42:06 69.86, 165.83 47.22 07/07/2023 00:41:01 69.87, 165.80 47.24 1.55 65
4 07/09/2023 15:17:32 70.05, -53.30 47.71 07/09/2023 15:18:34 70.07, -53.33 47.72 2.32 62
5 07/09/2023 16:08:14 -69.95, 114.17 132.39 07/09/2023 16:08:04 -69.96, 114.15 132.39 0.88 10
6 07/09/2023 16:58:49 69.37, -77.67 47.00 07/09/2023 16:57:39 69.41, -78.95 47.10 50.52 70
7 07/12/2023 07:34:25 70.03, 62.50 48.04 07/12/2023 07:35:05 70.02, 62.49 48.03 1.08 40
8 07/12/2023 08:25:07 -69.93,-130.03 132.06 07/12/2023 08:24:35 -69.92,-130.02 132.07 1.75 32
9 07/14/2023 23:00:49 -70.91, 9.57 130.64 07/14/2023 23:01:56 -70.78, 11.85 130.87 84.14 67
10 07/14/2023 23:51:18 70.02, 178.29 48.43 07/14/2023 23:51:35 70.02, 178.37 48.41 3.04 17
11 07/15/2023 00:41:59 -69.87, -14.16 131.73 07/15/2023 00:41:06 -69.86, -14.23 131.74 2.83 53
12 07/17/2023 15:17:27 -70.12, 126.61 131.04 07/17/2023 15:18:38 -70.10, 126.72 131.08 4.51 71
13 07/17/2023 16:08:10 69.97, -65.85 48.81 07/17/2023 16:08:05 69.99, -65.79 48.83 3.21 5
14 07/17/2023 16:58:50 -69.76, 101.78 131.41 07/17/2023 16:57:37 -69.78, 101.55 131.37 9.38 73

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/4/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230705.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 07/04/2023 in txt file.

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