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: 2/16/2023
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 02/18/2023 06:45:06 -70.92,-106.22 97.29 02/18/2023 06:46:14 -70.81,-104.09 97.50 78.36 68
2 02/18/2023 07:35:36 70.07, 62.44 81.80 02/18/2023 07:35:53 70.05, 62.43 81.77 2.18 17
3 02/18/2023 08:26:17 -69.92,-130.02 98.37 02/18/2023 08:25:23 -69.93,-130.09 98.35 2.87 54
4 02/20/2023 23:01:47 -70.15, 10.77 99.06 02/20/2023 23:02:51 -70.14, 10.82 99.09 2.30 64
5 02/20/2023 23:52:31 70.04, 178.25 80.81 02/20/2023 23:52:18 70.03, 178.31 80.81 2.49 13
6 02/21/2023 00:43:05 -69.52, -13.67 99.75 02/21/2023 00:41:54 -69.59, -14.67 99.63 39.40 71
7 02/23/2023 15:18:41 -70.09, 126.63 100.11 02/23/2023 15:19:16 -70.07, 126.62 100.13 1.63 35
8 02/23/2023 16:09:25 69.98, -65.90 79.77 02/23/2023 16:08:43 69.96, -65.89 79.76 1.95 42
9 02/26/2023 06:44:56 70.30, 74.75 79.14 02/26/2023 06:46:08 70.22, 75.10 79.03 15.64 72
10 02/26/2023 07:35:35 -70.04,-117.53 101.15 02/26/2023 07:35:39 -70.06,-117.50 101.14 2.06 4
11 02/26/2023 08:26:19 69.94, 49.94 78.73 02/26/2023 08:25:06 69.94, 49.98 78.74 1.77 73
12 02/28/2023 23:01:46 70.11,-169.19 77.93 02/28/2023 23:02:31 70.09,-169.19 77.90 3.02 45
13 02/28/2023 23:52:27 -69.96, -1.64 102.25 02/28/2023 23:52:01 -69.98, -1.70 102.22 3.22 26

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/16/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230216.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/16/2023 in txt file.

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