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: 9/4/2023
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 09/06/2023 07:34:11 -70.81,-118.68 115.72 09/06/2023 07:35:18 -70.71,-116.50 115.88 80.44 67
2 09/06/2023 08:24:41 69.95, 49.99 63.40 09/06/2023 08:24:57 69.96, 50.04 63.40 2.10 16
3 09/06/2023 09:15:22 -69.82,-142.50 116.73 09/06/2023 09:14:27 -69.84,-142.49 116.70 3.22 55
4 09/08/2023 23:50:52 -70.01, -1.66 115.55 09/08/2023 23:52:02 -69.99, -1.68 115.58 2.46 70
5 09/09/2023 00:41:36 69.89, 165.84 64.34 09/09/2023 00:41:29 69.89, 165.82 64.33 0.74 7
6 09/09/2023 01:32:14 -69.60, -26.41 115.96 09/09/2023 01:31:01 -69.67, -26.85 115.87 18.88 73
7 09/11/2023 16:07:47 -69.96, 114.18 114.60 09/11/2023 16:08:33 -69.96, 114.15 114.61 1.42 46
8 09/11/2023 16:58:31 69.84, -78.33 65.29 09/11/2023 16:58:00 69.85, -78.36 65.30 1.55 31
9 09/14/2023 07:34:14 70.75, 61.40 67.22 09/14/2023 07:35:22 70.65, 63.41 67.09 74.63 68
10 09/14/2023 08:24:42 -69.92,-129.99 113.62 09/14/2023 08:25:03 -69.95,-129.98 113.60 3.38 21
11 09/14/2023 09:15:26 69.80, 37.50 66.27 09/14/2023 09:14:31 69.78, 37.43 66.26 3.47 55
12 09/16/2023 23:50:55 70.03, 178.30 67.51 09/16/2023 23:52:02 70.01, 178.36 67.48 2.96 67
13 09/17/2023 00:41:36 -69.89, -14.17 112.63 09/17/2023 00:41:32 -69.91, -14.15 112.61 3.28 4
14 09/17/2023 01:32:15 69.50, 153.70 67.00 09/17/2023 01:31:03 69.58, 153.03 67.08 27.20 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/4/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230904.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/04/2023 in txt file.

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