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: 1/12/2023
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 01/14/2023 14:28:35 -71.13, 137.69 87.56 01/14/2023 14:29:41 -71.04, 140.45 87.73 99.98 66
2 01/14/2023 15:19:01 70.07, -53.30 91.33 01/14/2023 15:19:24 70.06, -53.37 91.32 2.58 23
3 01/14/2023 16:09:43 -69.98, 114.15 88.77 01/14/2023 16:08:54 -69.95, 114.11 88.79 3.16 49
4 01/17/2023 06:45:11 -70.23,-105.09 89.00 01/17/2023 06:46:22 -70.21,-104.91 89.03 6.60 71
5 01/17/2023 07:35:54 70.06, 62.48 90.83 01/17/2023 07:35:50 70.05, 62.50 90.81 1.42 4
6 01/17/2023 08:26:34 -69.86,-129.91 89.39 01/17/2023 08:25:21 -69.89,-130.10 89.35 7.67 73
7 01/19/2023 23:02:03 -70.12, 10.85 89.65 01/19/2023 23:02:50 -70.12, 10.84 89.66 0.54 47
8 01/19/2023 23:52:47 70.01, 178.32 90.23 01/19/2023 23:52:17 70.00, 178.32 90.23 0.87 30
9 01/22/2023 14:28:28 70.91, -41.96 90.61 01/22/2023 14:29:35 70.80, -39.89 90.42 76.42 67
10 01/22/2023 15:18:56 -70.08, 126.68 90.28 01/22/2023 15:19:16 -70.09, 126.70 90.27 2.26 20
11 01/22/2023 16:09:40 69.97, -65.85 89.60 01/22/2023 16:08:43 69.98, -65.82 89.62 1.41 57
12 01/25/2023 06:45:07 70.14, 75.03 89.17 01/25/2023 06:46:12 70.14, 75.03 89.16 0.31 65
13 01/25/2023 07:35:49 -70.04,-117.50 90.95 01/25/2023 07:35:42 -70.04,-117.48 90.95 0.67 7
14 01/25/2023 08:26:26 69.57, 50.52 88.55 01/25/2023 08:25:15 69.59, 49.54 88.62 37.95 71

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/12/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230112.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/12/2023 in txt file.

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