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: 4/24/2023
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 04/25/2023 23:51:23 70.05, 178.35 56.62 04/25/2023 23:51:47 70.04, 178.28 56.60 3.17 24
2 04/26/2023 00:42:05 -69.97, -14.21 123.48 04/26/2023 00:41:16 -69.98, -14.17 123.47 1.62 49
3 04/28/2023 15:17:32 -70.38, 126.33 123.89 04/28/2023 15:18:44 -70.29, 126.88 124.00 23.02 72
4 04/28/2023 16:08:11 70.00, -65.78 55.72 04/28/2023 16:08:14 70.02, -65.86 55.73 3.34 3
5 04/28/2023 16:58:53 -69.92, 101.66 124.39 04/28/2023 16:57:44 -69.91, 101.62 124.39 2.17 69
6 05/01/2023 07:34:15 -70.14,-117.50 124.97 05/01/2023 07:35:12 -70.13,-117.46 124.98 1.79 57
7 05/01/2023 08:24:59 70.03, 49.97 54.91 05/01/2023 08:24:39 70.02, 50.03 54.90 2.27 20
8 05/01/2023 09:15:29 -69.31,-141.65 125.84 05/01/2023 09:14:19 -69.36,-143.24 125.75 62.62 70
9 05/03/2023 23:51:02 -70.08, -1.61 125.83 05/03/2023 23:51:38 -70.09, -1.63 125.82 2.08 36
10 05/04/2023 00:41:46 69.97, 165.86 54.05 05/04/2023 00:41:05 69.98, 165.86 54.07 1.27 41
11 05/06/2023 15:17:17 70.65, -54.04 54.02 05/06/2023 15:18:26 70.56, -52.69 53.89 50.83 69
12 05/06/2023 16:07:50 -70.09, 114.17 126.59 05/06/2023 16:08:03 -70.07, 114.24 126.60 2.80 13
13 05/06/2023 16:58:33 69.93, -78.28 53.25 05/06/2023 16:57:30 69.96, -78.28 53.28 3.03 63

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/24/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230425.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/24/2023 in txt file.

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