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: 6/9/2023
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 06/10/2023 06:44:07 -70.75,-105.96 132.27 06/10/2023 06:45:16 -70.68,-104.32 132.39 60.66 69
2 06/10/2023 07:34:40 70.06, 62.45 47.00 06/10/2023 07:34:53 70.03, 62.37 46.98 3.62 13
3 06/10/2023 08:25:22 -69.97,-130.11 133.09 06/10/2023 08:24:22 -69.97,-130.08 133.09 1.20 60
4 06/12/2023 23:00:50 -70.13, 10.79 133.10 06/12/2023 23:01:53 -70.13, 10.74 133.11 2.07 63
5 06/12/2023 23:51:34 70.02, 178.27 46.78 06/12/2023 23:51:20 70.02, 178.23 46.79 1.55 14
6 06/13/2023 00:42:07 -69.45, -13.58 133.81 06/13/2023 00:40:57 -69.52, -14.82 133.70 48.95 70
7 06/15/2023 15:17:44 -70.10, 126.61 133.27 06/15/2023 15:18:20 -70.09, 126.57 133.28 1.87 36
8 06/15/2023 16:08:28 69.99, -65.91 46.62 06/15/2023 16:07:47 69.98, -65.94 46.62 1.42 41
9 06/18/2023 06:44:02 70.48, 74.46 47.06 06/18/2023 06:45:13 70.35, 75.20 46.90 31.05 71
10 06/18/2023 07:34:38 -70.07,-117.57 133.38 06/18/2023 07:34:46 -70.08,-117.55 133.37 1.63 8
11 06/18/2023 08:25:22 69.96, 49.90 46.51 06/18/2023 08:24:13 69.97, 49.93 46.53 1.45 69
12 06/20/2023 23:00:49 70.15,-169.24 46.68 06/20/2023 23:01:41 70.15,-169.20 46.67 1.80 52
13 06/20/2023 23:51:31 -70.05, -1.77 133.43 06/20/2023 23:51:11 -70.05, -1.71 133.43 2.29 20

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/9/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230609.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/09/2023 in txt file.

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