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: 6/27/2023
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 06/28/2023 23:00:44 -70.13, 10.80 133.15 06/28/2023 23:01:56 -70.13, 10.90 133.16 3.77 72
2 06/28/2023 23:51:27 69.96, 178.36 46.69 06/28/2023 23:51:24 69.98, 178.32 46.70 2.05 3
3 06/29/2023 00:42:08 -69.82, -14.11 133.47 06/29/2023 00:40:55 -69.82, -14.27 133.46 6.27 73
4 07/01/2023 15:17:37 -70.09, 126.63 133.02 07/01/2023 15:18:31 -70.08, 126.68 133.05 2.29 54
5 07/01/2023 16:08:21 69.98, -65.89 46.87 07/01/2023 16:07:58 69.97, -65.82 46.86 3.03 23
6 07/01/2023 16:58:49 -69.14, 102.64 134.01 07/01/2023 16:57:40 -69.21, 100.78 133.86 73.92 69
7 07/04/2023 07:34:30 -70.06,-117.55 132.85 07/04/2023 07:35:05 -70.06,-117.47 132.85 2.72 35
8 07/04/2023 08:25:13 69.90, 50.00 47.00 07/04/2023 08:24:33 69.90, 49.94 47.00 2.21 40
9 07/06/2023 23:00:52 70.72,-170.13 48.11 07/06/2023 23:02:00 70.62,-168.42 47.94 63.81 68
10 07/06/2023 23:51:22 -69.98, -1.66 132.67 07/06/2023 23:51:40 -69.97, -1.73 132.68 3.17 18
11 07/07/2023 00:42:06 69.88, 165.80 47.24 07/07/2023 00:41:07 69.86, 165.76 47.22 2.84 59
12 07/09/2023 15:17:32 70.07, -53.34 47.74 07/09/2023 15:18:42 70.07, -53.35 47.72 0.64 70
13 07/09/2023 16:08:14 -69.97, 114.14 132.38 07/09/2023 16:08:12 -69.97, 114.14 132.37 0.63 2
14 07/09/2023 16:58:54 69.66, -78.09 47.31 07/09/2023 16:57:42 69.70, -78.60 47.37 20.08 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/27/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230627.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/27/2023 in txt file.

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