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: 7/13/2023
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 07/14/2023 23:00:49 -70.90, 9.59 130.65 07/14/2023 23:01:56 -70.78, 11.85 130.87 83.45 67
2 07/14/2023 23:51:17 70.00, 178.32 48.41 07/14/2023 23:51:34 70.03, 178.38 48.42 3.54 17
3 07/15/2023 00:41:59 -69.91, -14.22 131.69 07/15/2023 00:41:04 -69.91, -14.15 131.68 2.86 55
4 07/17/2023 15:17:26 -70.11, 126.63 131.05 07/17/2023 15:18:37 -70.09, 126.71 131.09 3.87 71
5 07/17/2023 16:08:09 69.95, -65.82 48.79 07/17/2023 16:08:05 69.93, -65.87 48.77 2.58 4
6 07/17/2023 16:58:49 -69.75, 101.80 131.42 07/17/2023 16:57:36 -69.77, 101.53 131.38 10.23 73
7 07/20/2023 07:34:17 -70.01,-117.44 130.68 07/20/2023 07:35:07 -70.03,-117.49 130.67 3.06 50
8 07/20/2023 08:25:01 69.90, 50.02 49.22 07/20/2023 08:24:34 69.92, 50.01 49.24 2.28 27
9 07/20/2023 09:15:26 -68.90,-141.23 131.82 07/20/2023 09:14:20 -68.93,-143.68 131.68 98.32 66
10 07/22/2023 23:51:10 -70.02, -1.68 130.15 07/22/2023 23:51:36 -70.00, -1.64 130.17 2.42 26
11 07/23/2023 00:41:53 69.86, 165.86 49.70 07/23/2023 00:41:03 69.89, 165.85 49.73 2.90 50
12 07/25/2023 15:17:22 70.19, -53.48 50.59 07/25/2023 15:18:33 70.16, -53.16 50.53 12.87 71
13 07/25/2023 16:08:00 -69.93, 114.23 129.68 07/25/2023 16:08:04 -69.94, 114.17 129.67 2.98 4
14 07/25/2023 16:58:44 69.83, -78.31 50.23 07/25/2023 16:57:31 69.83, -78.34 50.24 1.19 73

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/13/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230714.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 07/13/2023 in txt file.

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