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: 2/12/2023
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 23:01:47 70.19,-169.27 83.77 02/12/2023 23:02:59 70.15,-169.20 83.71 5.50 72
2 02/12/2023 23:52:28 -70.05, -1.73 96.39 02/12/2023 23:52:29 -70.03, -1.73 96.41 2.20 1
3 02/13/2023 00:43:10 69.82, 165.91 83.36 02/13/2023 00:41:57 69.87, 165.70 83.43 10.03 73
4 02/15/2023 15:18:42 70.12, -53.39 82.78 02/15/2023 15:19:27 70.09, -53.40 82.74 3.39 45
5 02/15/2023 16:09:23 -69.97, 114.14 97.38 02/15/2023 16:08:57 -69.97, 114.07 97.38 2.64 26
6 02/18/2023 06:45:07 -70.89,-106.18 97.32 02/18/2023 06:46:15 -70.79,-104.12 97.52 75.89 68
7 02/18/2023 07:35:37 70.04, 62.48 81.77 02/18/2023 07:35:54 70.02, 62.40 81.75 3.68 17
8 02/18/2023 08:26:19 -69.95,-130.06 98.34 02/18/2023 08:25:23 -69.97,-130.04 98.32 2.02 56
9 02/20/2023 23:01:48 -70.14, 10.78 99.08 02/20/2023 23:02:51 -70.13, 10.80 99.10 1.33 63
10 02/20/2023 23:52:32 70.03, 178.26 80.80 02/20/2023 23:52:18 70.01, 178.28 80.79 1.81 14
11 02/21/2023 00:43:06 -69.51, -13.66 99.77 02/21/2023 00:41:55 -69.52, -14.76 99.69 43.13 71
12 02/23/2023 15:18:43 -70.07, 126.65 100.13 02/23/2023 15:19:16 -70.07, 126.61 100.13 1.48 33
13 02/23/2023 16:09:27 69.96, -65.88 79.75 02/23/2023 16:08:43 69.95, -65.91 79.75 1.73 44

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/12/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230212.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/12/2023 in txt file.

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