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: 1/19/2023
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 01/19/2023 23:02:02 -70.10, 10.88 89.67 01/19/2023 23:02:49 -70.10, 10.81 89.68 2.64 47
2 01/19/2023 23:52:46 69.98, 178.36 90.20 01/19/2023 23:52:16 69.99, 178.30 90.22 2.54 30
3 01/22/2023 14:28:26 70.84, -41.85 90.54 01/22/2023 14:29:34 70.74, -39.98 90.36 69.19 68
4 01/22/2023 15:18:55 -70.07, 126.70 90.29 01/22/2023 15:19:14 -70.08, 126.68 90.28 1.79 19
5 01/22/2023 16:09:39 69.95, -65.82 89.59 01/22/2023 16:08:41 69.97, -65.83 89.61 2.27 58
6 01/25/2023 06:45:06 70.14, 75.04 89.17 01/25/2023 06:46:09 70.13, 75.02 89.15 1.08 63
7 01/25/2023 07:35:48 -70.05,-117.50 90.94 01/25/2023 07:35:39 -70.02,-117.50 90.97 2.90 9
8 01/25/2023 08:26:23 69.46, 50.67 88.44 01/25/2023 08:25:13 69.52, 49.46 88.56 48.04 70
9 01/27/2023 23:01:58 70.08,-169.10 88.44 01/27/2023 23:02:33 70.08,-169.15 88.43 1.93 35
10 01/27/2023 23:52:40 -69.99, -1.64 91.67 01/27/2023 23:52:03 -69.97, -1.67 91.69 2.49 37
11 01/30/2023 14:28:12 -70.52, 138.69 91.81 01/30/2023 14:29:23 -70.42, 139.61 91.95 35.80 71
12 01/30/2023 15:18:49 70.04, -53.27 87.68 01/30/2023 15:18:55 70.03, -53.31 87.67 1.93 6
13 01/30/2023 16:09:31 -69.95, 114.19 92.43 01/30/2023 16:08:25 -69.93, 114.17 92.44 2.40 66

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/19/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230119.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/19/2023 in txt file.

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