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: 2/10/2023
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 02/12/2023 23:01:46 70.31,-169.44 83.90 02/12/2023 23:02:57 70.24,-169.06 83.80 16.10 71
2 02/12/2023 23:52:25 -70.07, -1.74 96.38 02/12/2023 23:52:28 -70.07, -1.67 96.38 2.94 3
3 02/13/2023 00:43:08 69.90, 165.82 83.44 02/13/2023 00:41:56 69.91, 165.75 83.47 3.13 72
4 02/15/2023 15:18:34 70.12, -53.36 82.78 02/15/2023 15:19:26 70.13, -53.34 82.78 1.57 52
5 02/15/2023 16:09:16 -70.03, 114.09 97.33 02/15/2023 16:08:56 -70.02, 114.14 97.34 1.99 20
6 02/15/2023 16:59:44 69.06, -77.20 81.65 02/15/2023 16:58:37 69.13, -79.41 81.83 87.89 67
7 02/18/2023 07:35:25 70.09, 62.45 81.83 02/18/2023 07:35:53 70.07, 62.47 81.79 2.93 28
8 02/18/2023 08:26:06 -69.95,-130.01 98.34 02/18/2023 08:25:23 -69.96,-130.05 98.33 1.93 43
9 02/20/2023 23:01:37 -70.46, 10.36 98.74 02/20/2023 23:02:48 -70.34, 11.11 98.90 30.64 71
10 02/20/2023 23:52:15 70.04, 178.32 80.81 02/20/2023 23:52:19 70.01, 178.28 80.78 3.31 4
11 02/21/2023 00:42:57 -69.94, -14.22 99.31 02/21/2023 00:41:48 -69.96, -14.16 99.28 2.78 69
12 02/23/2023 15:18:20 -70.10, 126.70 100.10 02/23/2023 15:19:15 -70.13, 126.69 100.08 3.34 55
13 02/23/2023 16:09:04 69.99, -65.83 79.79 02/23/2023 16:08:42 70.01, -65.83 79.80 1.69 22

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/10/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230211.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/10/2023 in txt file.

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