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: 8/19/2023
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 08/21/2023 07:34:01 -70.72,-118.47 121.44 08/21/2023 07:35:09 -70.65,-116.58 121.58 70.09 68
2 08/21/2023 08:24:33 69.97, 50.01 57.79 08/21/2023 08:24:47 69.95, 50.05 57.76 2.59 14
3 08/21/2023 09:15:14 -69.83,-142.46 122.35 08/21/2023 09:14:17 -69.83,-142.48 122.34 1.01 57
4 08/23/2023 23:50:45 -70.04, -1.65 121.26 08/23/2023 23:51:52 -70.03, -1.61 121.28 2.19 67
5 08/24/2023 00:41:29 69.92, 165.84 58.63 08/24/2023 00:41:19 69.92, 165.89 58.63 1.85 10
6 08/24/2023 01:32:05 -69.52, -26.25 121.78 08/24/2023 01:30:53 -69.60, -26.93 121.67 28.07 72
7 08/26/2023 16:07:41 -70.01, 114.16 120.38 08/26/2023 16:08:24 -69.98, 114.20 120.41 3.22 43
8 08/26/2023 16:58:24 69.89, -78.35 59.52 08/26/2023 16:57:50 69.88, -78.30 59.50 2.54 34
9 08/29/2023 07:34:06 70.71, 61.50 61.29 08/29/2023 07:35:14 70.62, 63.37 61.13 69.63 68
10 08/29/2023 08:24:35 -69.94,-129.96 119.52 08/29/2023 08:24:55 -69.91,-130.02 119.54 3.37 20
11 08/29/2023 09:15:19 69.82, 37.52 60.38 08/29/2023 09:14:22 69.80, 37.47 60.37 2.84 57
12 08/31/2023 23:50:49 70.02, 178.35 61.52 08/31/2023 23:51:55 70.02, 178.38 61.51 1.17 66
13 09/01/2023 00:41:31 -69.93, -14.19 118.57 09/01/2023 00:41:25 -69.92, -14.12 118.58 2.41 6
14 09/01/2023 01:32:09 69.49, 153.76 61.00 09/01/2023 01:30:57 69.53, 152.98 61.06 30.43 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/19/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230819.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 08/19/2023 in txt file.

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