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: 3/18/2023
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 03/19/2023 15:18:32 70.07, -53.38 70.56 03/19/2023 15:19:08 70.06, -53.42 70.55 1.78 36
2 03/19/2023 16:09:14 -69.98, 114.08 109.55 03/19/2023 16:08:38 -69.95, 114.06 109.58 3.27 36
3 03/22/2023 06:44:51 -70.73,-105.94 109.81 03/22/2023 06:46:00 -70.63,-104.36 109.97 59.21 69
4 03/22/2023 07:35:24 70.04, 62.45 69.46 03/22/2023 07:35:36 70.03, 62.41 69.45 2.07 12
5 03/22/2023 08:26:06 -69.95,-130.10 110.65 03/22/2023 08:25:06 -69.92,-130.11 110.68 3.28 60
6 03/24/2023 23:01:31 -70.13, 10.78 111.50 03/24/2023 23:02:35 -70.12, 10.78 111.52 1.14 64
7 03/24/2023 23:52:15 70.02, 178.26 68.38 03/24/2023 23:52:02 70.00, 178.26 68.36 1.81 13
8 03/25/2023 00:42:49 -69.50, -13.66 112.18 03/25/2023 00:41:38 -69.57, -14.70 112.07 41.17 71
9 03/27/2023 15:18:22 -70.06, 126.66 112.62 03/27/2023 15:19:02 -70.06, 126.58 112.64 3.07 40
10 03/27/2023 16:09:06 69.96, -65.88 67.26 03/27/2023 16:08:29 69.94, -65.94 67.24 3.22 37
11 03/30/2023 06:44:41 70.64, 74.21 66.95 03/30/2023 06:45:50 70.55, 75.56 66.81 50.59 69
12 03/30/2023 07:35:14 -70.07,-117.57 113.67 03/30/2023 07:35:27 -70.07,-117.52 113.68 1.95 13
13 03/30/2023 08:25:58 69.96, 49.89 66.21 03/30/2023 08:24:54 69.95, 49.96 66.20 3.24 64

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/18/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230318.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/18/2023 in txt file.

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