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: 9/15/2023
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 09/16/2023 23:50:56 70.03, 178.30 67.50 09/16/2023 23:52:04 70.00, 178.33 67.47 2.97 68
2 09/17/2023 00:41:37 -69.90, -14.19 112.62 09/17/2023 00:41:34 -69.89, -14.19 112.63 0.65 3
3 09/17/2023 01:32:17 69.55, 153.62 67.05 09/17/2023 01:31:05 69.57, 153.01 67.07 23.97 72
4 09/19/2023 16:07:49 69.95, -65.82 68.46 09/19/2023 16:08:33 69.93, -65.88 68.43 3.43 44
5 09/19/2023 16:58:31 -69.87, 101.62 111.61 09/19/2023 16:58:02 -69.88, 101.67 111.61 2.20 29
6 09/22/2023 07:34:15 -70.85,-118.78 109.60 09/22/2023 07:35:22 -70.70,-116.52 109.79 84.28 67
7 09/22/2023 08:24:44 69.94, 49.96 69.49 09/22/2023 08:25:01 69.93, 50.00 69.47 1.95 17
8 09/22/2023 09:15:25 -69.80,-142.51 110.65 09/22/2023 09:14:31 -69.82,-142.51 110.62 2.33 54
9 09/24/2023 23:50:54 -70.01, -1.67 109.43 09/24/2023 23:52:02 -70.01, -1.64 109.43 1.38 68
10 09/25/2023 00:41:38 69.89, 165.81 70.47 09/25/2023 00:41:29 69.89, 165.85 70.48 1.49 9
11 09/25/2023 01:32:15 -69.54, -26.35 109.88 09/25/2023 01:31:03 -69.57, -26.97 109.83 24.19 72
12 09/27/2023 16:07:48 -69.96, 114.17 108.43 09/27/2023 16:08:30 -69.94, 114.16 108.46 2.05 42
13 09/27/2023 16:58:32 69.85, -78.35 71.47 09/27/2023 16:57:57 69.82, -78.36 71.44 2.54 35

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/15/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230915.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/15/2023 in txt file.

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