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: 3/15/2023
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 03/16/2023 23:01:39 70.08,-169.17 71.64 03/16/2023 23:02:39 70.10,-169.25 71.65 3.65 60
2 03/16/2023 23:52:21 -69.99, -1.71 108.48 03/16/2023 23:52:09 -69.99, -1.77 108.48 2.09 12
3 03/17/2023 00:42:54 69.29, 166.62 70.78 03/17/2023 00:41:45 69.39, 165.05 70.94 62.19 69
4 03/19/2023 15:18:32 70.09, -53.41 70.58 03/19/2023 15:19:07 70.09, -53.38 70.57 1.06 35
5 03/19/2023 16:09:14 -70.00, 114.05 109.54 03/19/2023 16:08:37 -69.98, 114.10 109.55 2.69 37
6 03/22/2023 06:44:50 -70.70,-105.89 109.84 03/22/2023 06:46:00 -70.58,-104.43 110.02 55.48 70
7 03/22/2023 07:35:23 70.01, 62.49 69.43 03/22/2023 07:35:35 70.03, 62.42 69.45 3.25 12
8 03/22/2023 08:26:05 -69.92,-130.05 110.69 03/22/2023 08:25:05 -69.92,-130.10 110.67 1.94 60
9 03/24/2023 23:01:31 -70.11, 10.82 111.52 03/24/2023 23:02:35 -70.09, 10.74 111.55 3.47 64
10 03/24/2023 23:52:15 70.00, 178.28 68.36 03/24/2023 23:52:01 70.03, 178.30 68.38 2.69 14
11 03/25/2023 00:42:49 -69.48, -13.63 112.20 03/25/2023 00:41:38 -69.54, -14.74 112.10 43.56 71
12 03/27/2023 15:18:22 -70.11, 126.59 112.58 03/27/2023 15:18:59 -70.09, 126.64 112.60 2.50 37
13 03/27/2023 16:09:05 69.95, -65.87 67.25 03/27/2023 16:08:26 69.97, -65.88 67.27 2.12 39

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/15/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230315.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/15/2023 in txt file.

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