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: 2/17/2023
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 02/18/2023 06:45:06 -70.92,-106.22 97.29 02/18/2023 06:46:14 -70.81,-104.09 97.50 78.43 68
2 02/18/2023 07:35:36 70.07, 62.44 81.80 02/18/2023 07:35:53 70.05, 62.44 81.78 1.77 17
3 02/18/2023 08:26:17 -69.92,-130.02 98.37 02/18/2023 08:25:23 -69.93,-130.09 98.35 2.83 54
4 02/20/2023 23:01:47 -70.15, 10.77 99.06 02/20/2023 23:02:51 -70.15, 10.83 99.08 2.30 64
5 02/20/2023 23:52:31 70.04, 178.25 80.81 02/20/2023 23:52:18 70.04, 178.32 80.81 2.82 13
6 02/21/2023 00:43:05 -69.52, -13.67 99.75 02/21/2023 00:41:54 -69.60, -14.66 99.62 39.31 71
7 02/23/2023 15:18:41 -70.08, 126.64 100.11 02/23/2023 15:19:16 -70.09, 126.64 100.11 1.07 35
8 02/23/2023 16:09:25 69.97, -65.89 79.77 02/23/2023 16:08:43 69.98, -65.87 79.78 1.22 42
9 02/26/2023 06:44:57 70.34, 74.68 79.19 02/26/2023 06:46:08 70.25, 75.14 79.06 19.80 71
10 02/26/2023 07:35:35 -70.03,-117.52 101.16 02/26/2023 07:35:40 -70.03,-117.54 101.16 0.65 5
11 02/26/2023 08:26:19 69.93, 49.95 78.72 02/26/2023 08:25:07 69.92, 49.95 78.72 0.73 72
12 02/28/2023 23:01:46 70.10,-169.17 77.92 02/28/2023 23:02:32 70.08,-169.20 77.89 2.12 46
13 02/28/2023 23:52:28 -70.00, -1.70 102.21 02/28/2023 23:52:02 -69.97, -1.72 102.23 2.69 26

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/17/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230217.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/17/2023 in txt file.

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