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: 4/27/2023
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 04/28/2023 15:17:34 -70.20, 126.58 124.07 04/28/2023 15:18:45 -70.18, 126.72 124.11 6.02 71
2 04/28/2023 16:08:17 70.03, -65.84 55.74 04/28/2023 16:08:13 70.02, -65.85 55.73 0.52 4
3 04/28/2023 16:58:57 -69.84, 101.76 124.47 04/28/2023 16:57:44 -69.85, 101.54 124.45 8.60 73
4 05/01/2023 07:34:29 -70.08,-117.48 125.02 05/01/2023 07:35:13 -70.08,-117.53 125.03 1.93 44
5 05/01/2023 08:25:13 69.96, 50.01 54.84 05/01/2023 08:24:40 69.98, 49.96 54.86 2.45 33
6 05/03/2023 23:00:53 70.64,-169.92 54.77 05/03/2023 23:02:02 70.56,-168.59 54.65 50.06 69
7 05/03/2023 23:51:26 -70.08, -1.72 125.83 05/03/2023 23:51:39 -70.06, -1.67 125.85 2.77 13
8 05/04/2023 00:42:10 69.96, 165.77 54.04 05/04/2023 00:41:06 69.95, 165.82 54.04 1.98 64
9 05/06/2023 15:17:40 70.12, -53.34 53.47 05/06/2023 15:18:35 70.11, -53.34 53.45 1.10 55
10 05/06/2023 16:08:22 -70.03, 114.11 126.64 05/06/2023 16:08:05 -70.01, 114.14 126.67 3.26 17
11 05/06/2023 16:58:52 69.17, -77.32 52.47 05/06/2023 16:57:44 69.23, -79.27 52.57 77.07 68
12 05/09/2023 07:34:35 70.09, 62.47 52.70 05/09/2023 07:34:59 70.08, 62.50 52.68 1.62 24
13 05/09/2023 08:25:16 -69.94,-129.99 127.47 05/09/2023 08:24:29 -69.97,-130.02 127.43 3.36 47

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/27/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230428.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/27/2023 in txt file.

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