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: 5/19/2023
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 05/19/2023 23:00:51 70.18,-169.24 50.23 05/19/2023 23:02:02 70.19,-169.14 50.24 4.04 71
2 05/19/2023 23:51:32 -70.05, -1.72 129.91 05/19/2023 23:51:32 -70.07, -1.68 129.89 3.37 0
3 05/20/2023 00:42:14 69.81, 165.94 49.84 05/20/2023 00:41:01 69.86, 165.67 49.90 11.50 73
4 05/22/2023 15:17:46 70.13, -53.41 49.64 05/22/2023 15:18:30 70.11, -53.37 49.62 2.26 44
5 05/22/2023 16:08:27 -69.99, 114.12 130.51 05/22/2023 16:08:00 -70.00, 114.10 130.51 0.89 27
6 05/25/2023 06:44:11 -70.94,-106.24 130.02 05/25/2023 06:45:18 -70.83,-104.07 130.18 79.96 67
7 05/25/2023 07:34:41 70.08, 62.43 49.09 05/25/2023 07:34:57 70.07, 62.45 49.07 2.07 16
8 05/25/2023 08:25:22 -69.95,-130.05 131.06 05/25/2023 08:24:27 -69.96,-130.07 131.05 1.61 55
9 05/27/2023 23:00:52 -70.16, 10.76 131.28 05/27/2023 23:01:56 -70.17, 10.84 131.29 2.87 64
10 05/27/2023 23:51:36 70.05, 178.25 48.59 05/27/2023 23:51:23 70.06, 178.32 48.60 3.15 13
11 05/28/2023 00:42:10 -69.53, -13.67 131.95 05/28/2023 00:40:59 -69.62, -14.65 131.83 39.14 71
12 05/30/2023 15:17:45 -70.07, 126.66 131.79 05/30/2023 15:18:22 -70.09, 126.61 131.78 2.87 37
13 05/30/2023 16:08:29 69.96, -65.86 48.09 05/30/2023 16:07:49 69.98, -65.91 48.11 2.63 40

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/19/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230519.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/19/2023 in txt file.

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