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: 6/18/2023
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 06/20/2023 23:00:49 70.10,-169.17 46.63 06/20/2023 23:01:50 70.12,-169.10 46.64 3.43 61
2 06/20/2023 23:51:30 -69.96, -1.64 133.52 06/20/2023 23:51:21 -69.96, -1.70 133.52 2.46 9
3 06/21/2023 00:42:05 69.37, 166.54 45.86 06/21/2023 00:40:55 69.47, 165.26 46.01 51.06 70
4 06/23/2023 15:17:41 70.04, -53.30 46.58 06/23/2023 15:18:19 70.06, -53.31 46.60 2.67 38
5 06/23/2023 16:08:23 -69.95, 114.16 133.52 06/23/2023 16:07:49 -69.96, 114.18 133.51 1.48 34
6 06/26/2023 06:44:03 -70.77,-105.99 132.59 06/26/2023 06:45:11 -70.69,-104.14 132.74 68.54 68
7 06/26/2023 07:34:35 70.03, 62.48 46.64 06/26/2023 07:34:48 70.03, 62.54 46.64 2.30 13
8 06/26/2023 08:25:16 -69.88,-129.98 133.52 06/26/2023 08:24:19 -69.87,-130.05 133.52 2.89 57
9 06/28/2023 23:00:44 -70.08, 10.87 133.20 06/28/2023 23:01:50 -70.09, 10.87 133.20 1.14 66
10 06/28/2023 23:51:28 69.98, 178.33 46.70 06/28/2023 23:51:17 69.98, 178.35 46.70 0.86 11
11 06/29/2023 00:42:04 -69.56, -13.73 133.74 06/29/2023 00:40:52 -69.60, -14.54 133.66 31.41 72
12 07/01/2023 15:17:37 -70.03, 126.71 133.08 07/01/2023 15:18:19 -70.02, 126.65 133.11 2.97 42
13 07/01/2023 16:08:21 69.93, -65.83 46.82 07/01/2023 16:07:45 69.95, -65.79 46.84 2.37 36

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/18/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230619.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/18/2023 in txt file.

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