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: 9/28/2023
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 09/30/2023 07:34:10 70.55, 61.70 73.20 09/30/2023 07:35:19 70.42, 63.11 73.06 54.22 69
2 09/30/2023 08:24:42 -69.94,-130.04 107.41 09/30/2023 08:24:56 -69.93,-129.97 107.43 2.94 14
3 09/30/2023 09:15:25 69.82, 37.46 72.48 09/30/2023 09:14:22 69.82, 37.52 72.48 2.53 63
4 10/02/2023 23:50:53 70.01, 178.32 73.68 10/02/2023 23:51:51 69.99, 178.39 73.66 2.92 58
5 10/03/2023 00:41:34 -69.87, -14.15 106.45 10/03/2023 00:41:21 -69.88, -14.13 106.44 1.97 13
6 10/03/2023 01:32:07 69.16, 154.17 72.85 10/03/2023 01:30:58 69.22, 152.61 72.92 61.93 69
7 10/05/2023 16:07:46 69.95, -65.82 74.65 10/05/2023 16:08:16 69.96, -65.76 74.66 2.87 30
8 10/05/2023 16:58:27 -69.81, 101.71 105.48 10/05/2023 16:57:47 -69.80, 101.65 105.49 2.26 40
9 10/08/2023 07:34:00 -70.28,-117.86 104.01 10/08/2023 07:35:11 -70.17,-117.19 104.12 27.51 71
10 10/08/2023 08:24:39 69.90, 50.02 75.63 10/08/2023 08:24:41 69.89, 50.05 75.62 1.81 2
11 10/08/2023 09:15:20 -69.76,-142.44 104.51 10/08/2023 09:14:11 -69.79,-142.46 104.48 3.28 69
12 10/10/2023 23:50:48 -69.98, -1.62 103.30 10/10/2023 23:51:38 -69.96, -1.59 103.32 2.46 50
13 10/11/2023 00:41:31 69.82, 165.93 76.56 10/11/2023 00:41:05 69.83, 165.88 76.58 2.60 26

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/28/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230928.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/28/2023 in txt file.

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