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: 4/30/2023
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 05/01/2023 07:34:29 -70.10,-117.51 125.00 05/01/2023 07:35:12 -70.11,-117.49 125.00 1.39 43
2 05/01/2023 08:25:13 69.98, 49.99 54.86 05/01/2023 08:24:40 69.96, 49.94 54.84 3.12 33
3 05/03/2023 23:00:53 70.66,-169.94 54.79 05/03/2023 23:02:02 70.54,-168.61 54.64 50.93 69
4 05/03/2023 23:51:25 -70.05, -1.66 125.86 05/03/2023 23:51:39 -70.04, -1.70 125.87 1.40 14
5 05/04/2023 00:42:09 69.92, 165.83 54.01 05/04/2023 00:41:06 69.94, 165.80 54.02 2.03 63
6 05/06/2023 15:17:40 70.14, -53.36 53.48 05/06/2023 15:18:35 70.11, -53.34 53.45 2.86 55
7 05/06/2023 16:08:21 -70.00, 114.17 126.68 05/06/2023 16:08:05 -70.00, 114.13 126.67 1.55 16
8 05/06/2023 16:58:52 69.19, -77.34 52.48 05/06/2023 16:57:44 69.23, -79.27 52.57 76.25 68
9 05/09/2023 07:34:36 70.10, 62.45 52.71 05/09/2023 07:35:00 70.10, 62.52 52.70 2.72 24
10 05/09/2023 08:25:17 -69.96,-130.01 127.45 05/09/2023 08:24:30 -69.99,-130.00 127.42 3.37 47
11 05/11/2023 23:00:46 -70.13, 10.85 127.95 05/11/2023 23:01:58 -70.11, 10.79 127.98 3.20 72
12 05/11/2023 23:51:30 70.02, 178.34 51.93 05/11/2023 23:51:25 70.00, 178.28 51.91 3.27 5
13 05/12/2023 00:42:09 -69.77, -13.97 128.34 05/12/2023 00:40:56 -69.84, -14.32 128.26 15.30 73

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/30/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230430.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/30/2023 in txt file.

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