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: 1/26/2023
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 01/27/2023 23:01:58 70.10,-169.14 88.46 01/27/2023 23:02:55 70.12,-169.20 88.47 2.68 57
2 01/27/2023 23:52:40 -70.02, -1.69 91.64 01/27/2023 23:52:25 -70.01, -1.72 91.65 1.79 15
3 01/28/2023 00:43:11 69.21, 166.80 87.50 01/28/2023 00:42:03 69.30, 164.96 87.67 73.02 68
4 01/30/2023 15:18:51 70.11, -53.37 87.75 01/30/2023 15:19:26 70.11, -53.33 87.75 1.52 35
5 01/30/2023 16:09:33 -70.02, 114.08 92.36 01/30/2023 16:08:56 -70.00, 114.14 92.37 2.79 37
6 02/02/2023 06:45:12 -70.86,-106.10 92.20 02/02/2023 06:46:20 -70.72,-104.21 92.42 70.84 68
7 02/02/2023 07:35:43 70.07, 62.46 86.96 02/02/2023 07:35:57 70.07, 62.48 86.96 0.69 14
8 02/02/2023 08:26:25 -69.98,-130.08 93.15 02/02/2023 08:25:27 -69.96,-130.04 93.16 2.02 58
9 02/04/2023 23:01:51 -70.15, 10.81 93.74 02/04/2023 23:03:00 -70.16, 10.83 93.74 1.50 69
10 02/04/2023 23:52:35 70.04, 178.28 86.14 02/04/2023 23:52:27 70.05, 178.32 86.15 1.75 8
11 02/05/2023 00:43:13 -69.73, -13.94 94.19 02/05/2023 00:42:00 -69.78, -14.42 94.12 19.04 73
12 02/07/2023 15:18:42 -70.13, 126.62 94.58 02/07/2023 15:19:29 -70.10, 126.63 94.62 2.94 47
13 02/07/2023 16:09:25 69.97, -65.84 85.25 02/07/2023 16:08:56 69.99, -65.89 85.27 2.67 29

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/26/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230126.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/26/2023 in txt file.

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