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: 8/3/2023
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 08/05/2023 07:34:03 -70.15,-117.61 126.85 08/05/2023 07:35:14 -70.14,-117.34 126.89 10.37 71
2 08/05/2023 08:24:45 69.94, 50.03 52.93 08/05/2023 08:24:43 69.93, 50.01 52.92 0.95 2
3 08/05/2023 09:15:26 -69.79,-142.44 127.21 08/05/2023 09:14:13 -69.81,-142.52 127.18 3.62 73
4 08/07/2023 23:50:52 -70.05, -1.68 126.22 08/07/2023 23:51:45 -70.04, -1.60 126.25 3.39 53
5 08/08/2023 00:41:35 69.89, 165.87 53.62 08/08/2023 00:41:13 69.88, 165.83 53.61 2.28 22
6 08/08/2023 01:32:03 -69.06, -25.61 127.25 08/08/2023 01:30:55 -69.11, -27.58 127.11 78.69 68
7 08/10/2023 16:07:42 -69.96, 114.25 125.55 08/10/2023 16:08:16 -69.96, 114.18 125.56 2.62 34
8 08/10/2023 16:58:26 69.86, -78.29 54.35 08/10/2023 16:57:43 69.86, -78.32 54.36 1.40 43
9 08/13/2023 07:34:00 70.50, 61.87 55.80 08/13/2023 07:35:10 70.35, 62.99 55.60 44.87 70
10 08/13/2023 08:24:34 -69.98,-130.00 124.74 08/13/2023 08:24:45 -69.97,-129.93 124.76 3.21 11
11 08/13/2023 09:15:17 69.83, 37.54 55.11 08/13/2023 09:14:13 69.80, 37.49 55.10 3.11 64
12 08/15/2023 23:50:42 70.01, 178.43 56.10 08/15/2023 23:51:45 69.99, 178.36 56.08 2.79 63
13 08/16/2023 00:41:24 -69.91, -14.10 124.00 08/16/2023 00:41:15 -69.89, -14.15 124.01 2.52 9
14 08/16/2023 01:31:59 69.33, 154.05 55.41 08/16/2023 01:30:49 69.39, 152.81 55.53 49.01 70

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/3/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230803.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 08/03/2023 in txt file.

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