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: 4/21/2023
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 04/23/2023 07:34:35 70.13, 62.45 57.58 04/23/2023 07:35:18 70.12, 62.53 57.57 2.96 43
2 04/23/2023 08:25:16 -69.99,-130.03 122.57 04/23/2023 08:24:48 -70.01,-130.00 122.56 2.06 28
3 04/25/2023 23:51:23 70.04, 178.36 56.61 04/25/2023 23:51:47 70.04, 178.29 56.61 2.88 24
4 04/26/2023 00:42:05 -69.96, -14.19 123.49 04/26/2023 00:41:16 -69.98, -14.16 123.46 2.92 49
5 04/28/2023 15:17:33 -70.40, 126.30 123.87 04/28/2023 15:18:44 -70.30, 126.90 123.99 24.97 71
6 04/28/2023 16:08:12 70.03, -65.82 55.74 04/28/2023 16:08:14 70.03, -65.84 55.74 1.07 2
7 04/28/2023 16:58:54 -69.94, 101.63 124.37 04/28/2023 16:57:44 -69.92, 101.64 124.38 1.96 70
8 05/01/2023 07:34:16 -70.13,-117.49 124.98 05/01/2023 07:35:12 -70.15,-117.43 124.96 3.41 56
9 05/01/2023 08:25:00 70.02, 49.98 54.90 05/01/2023 08:24:39 70.04, 50.05 54.92 3.40 21
10 05/01/2023 09:15:29 -69.24,-141.56 125.91 05/01/2023 09:14:20 -69.33,-143.29 125.78 68.44 69
11 05/03/2023 23:51:04 -70.07, -1.62 125.83 05/03/2023 23:51:39 -70.07, -1.66 125.84 1.83 35
12 05/04/2023 00:41:48 69.97, 165.85 54.06 05/04/2023 00:41:06 69.95, 165.82 54.04 2.15 42

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/21/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230422.jpg

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

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