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: 5/18/2023
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 05/19/2023 23:00:51 70.16,-169.22 50.22 05/19/2023 23:02:03 70.16,-169.19 50.20 1.06 72
2 05/19/2023 23:51:32 -70.03, -1.69 129.93 05/19/2023 23:51:33 -70.04, -1.72 129.92 1.76 1
3 05/20/2023 00:42:14 69.79, 165.96 49.82 05/20/2023 00:41:02 69.83, 165.62 49.87 13.47 72
4 05/22/2023 15:17:46 70.11, -53.38 49.62 05/22/2023 15:18:30 70.13, -53.34 49.64 2.57 44
5 05/22/2023 16:08:28 -70.03, 114.07 130.48 05/22/2023 16:08:00 -70.02, 114.13 130.49 2.60 28
6 05/25/2023 06:44:11 -70.92,-106.22 130.03 05/25/2023 06:45:19 -70.80,-104.12 130.21 77.58 68
7 05/25/2023 07:34:41 70.07, 62.45 49.08 05/25/2023 07:34:57 70.09, 62.48 49.09 2.18 16
8 05/25/2023 08:25:23 -69.98,-130.10 131.02 05/25/2023 08:24:27 -69.98,-130.04 131.03 2.22 56
9 05/27/2023 23:00:51 -70.15, 10.78 131.30 05/27/2023 23:01:56 -70.13, 10.78 131.32 1.69 65
10 05/27/2023 23:51:35 70.03, 178.27 48.58 05/27/2023 23:51:23 70.02, 178.27 48.57 1.45 12
11 05/28/2023 00:42:10 -69.57, -13.73 131.90 05/28/2023 00:40:58 -69.64, -14.62 131.81 35.40 72
12 05/30/2023 15:17:46 -70.12, 126.60 131.75 05/30/2023 15:18:22 -70.11, 126.63 131.76 1.71 36
13 05/30/2023 16:08:30 70.01, -65.92 48.14 05/30/2023 16:07:49 69.99, -65.89 48.12 2.18 41

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/18/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230518.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/18/2023 in txt file.

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