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: 1/18/2023
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 01/19/2023 23:02:03 -70.10, 10.87 89.67 01/19/2023 23:02:50 -70.09, 10.80 89.69 3.46 47
2 01/19/2023 23:52:47 69.99, 178.36 90.21 01/19/2023 23:52:17 69.98, 178.29 90.21 2.80 30
3 01/22/2023 14:28:26 70.84, -41.85 90.54 01/22/2023 14:29:34 70.73, -40.00 90.35 68.77 68
4 01/22/2023 15:18:55 -70.07, 126.70 90.29 01/22/2023 15:19:14 -70.07, 126.67 90.29 1.23 19
5 01/22/2023 16:09:39 69.95, -65.82 89.59 01/22/2023 16:08:41 69.96, -65.85 89.60 1.06 58
6 01/25/2023 06:45:06 70.13, 75.05 89.16 01/25/2023 06:46:09 70.11, 75.00 89.13 3.05 63
7 01/25/2023 07:35:48 -70.04,-117.49 90.95 01/25/2023 07:35:38 -70.06,-117.45 90.93 2.65 10
8 01/25/2023 08:26:23 69.45, 50.68 88.43 01/25/2023 08:25:13 69.50, 49.43 88.54 49.20 70
9 01/27/2023 23:01:59 70.12,-169.16 88.48 01/27/2023 23:02:32 70.11,-169.11 88.46 2.59 33
10 01/27/2023 23:52:40 -69.97, -1.62 91.69 01/27/2023 23:52:02 -70.00, -1.63 91.66 3.02 38
11 01/30/2023 14:28:13 -70.49, 138.73 91.84 01/30/2023 14:29:24 -70.39, 139.57 91.98 32.90 71
12 01/30/2023 15:18:51 70.07, -53.31 87.71 01/30/2023 15:18:55 70.05, -53.28 87.69 2.03 4
13 01/30/2023 16:09:33 -69.97, 114.16 92.41 01/30/2023 16:08:25 -69.95, 114.21 92.42 3.14 68

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/18/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230118.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/18/2023 in txt file.

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