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: 1/24/2023
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 01/25/2023 06:45:10 70.32, 74.75 89.36 01/25/2023 06:46:22 70.25, 75.13 89.27 16.24 72
2 01/25/2023 07:35:49 -70.08,-117.55 90.91 01/25/2023 07:35:53 -70.08,-117.48 90.91 2.96 4
3 01/25/2023 08:26:32 69.91, 50.01 88.91 01/25/2023 08:25:21 69.93, 49.95 88.94 3.40 71
4 01/27/2023 23:01:58 70.11,-169.14 88.46 01/27/2023 23:02:55 70.12,-169.20 88.46 2.44 57
5 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
6 01/28/2023 00:43:11 69.21, 166.79 87.51 01/28/2023 00:42:03 69.29, 164.96 87.67 72.98 68
7 01/30/2023 15:18:51 70.11, -53.38 87.76 01/30/2023 15:19:26 70.10, -53.35 87.74 1.63 35
8 01/30/2023 16:09:32 -69.97, 114.16 92.41 01/30/2023 16:08:56 -70.00, 114.14 92.38 3.23 36
9 02/02/2023 06:45:11 -70.82,-106.03 92.24 02/02/2023 06:46:20 -70.71,-104.23 92.43 66.93 69
10 02/02/2023 07:35:43 70.08, 62.45 86.97 02/02/2023 07:35:57 70.05, 62.45 86.94 3.20 14
11 02/02/2023 08:26:24 -69.93,-130.01 93.20 02/02/2023 08:25:27 -69.95,-130.06 93.17 2.39 57
12 02/04/2023 23:01:50 -70.11, 10.87 93.78 02/04/2023 23:03:00 -70.13, 10.79 93.77 3.28 70
13 02/04/2023 23:52:34 70.01, 178.33 86.11 02/04/2023 23:52:27 70.01, 178.28 86.12 2.24 7
14 02/05/2023 00:43:12 -69.70, -13.89 94.23 02/05/2023 00:42:00 -69.75, -14.46 94.15 22.68 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/24/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230124.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/24/2023 in txt file.

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