Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and METOP-B Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/1/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (METOP-B) Time (METOP-B) Lat,Lon (METOP-B) SZA (METOP-B ) Distance(km) Time Diff (sec)
1 08/14/2025 16:31:10 -75.13, 98.34 118.52 08/14/2025 16:32:15 -75.06, 101.80 118.84 99.37 65
2 08/14/2025 17:21:51 74.95, -93.81 61.27 08/14/2025 17:22:58 74.91, -91.28 61.05 73.19 67
3 08/14/2025 18:12:33 -74.81, 73.90 118.89 08/14/2025 18:13:43 -74.75, 75.62 119.07 50.55 70
4 08/14/2025 19:03:14 74.62,-118.26 60.91 08/14/2025 19:04:26 74.60,-117.45 60.82 24.09 72
5 08/14/2025 19:53:57 -74.52, 49.30 119.19 08/14/2025 19:55:10 -74.49, 49.60 119.26 9.46 73
6 08/14/2025 20:44:40 74.43,-143.13 60.71 08/14/2025 20:45:51 74.44,-143.21 60.71 2.64 71
7 08/14/2025 21:35:25 -74.43, 24.17 119.28 08/14/2025 21:36:33 -74.43, 24.09 119.29 2.25 68
8 08/14/2025 22:26:10 74.43,-168.52 60.74 08/14/2025 22:27:13 74.42,-168.59 60.72 2.36 63
9 08/14/2025 23:16:55 -74.43, -1.22 119.25 08/14/2025 23:17:55 -74.41, -1.29 119.28 3.19 60
10 08/15/2025 00:07:40 74.44, 166.09 60.77 08/15/2025 00:08:34 74.45, 166.15 60.77 2.78 54
11 08/15/2025 00:58:25 -74.44, -26.61 119.22 08/15/2025 00:59:16 -74.45, -26.54 119.23 2.01 51
12 08/15/2025 01:49:10 74.44, 140.70 60.80 08/15/2025 01:49:56 74.44, 140.77 60.78 2.01 46

Figure of NOAA-21 and METOP-B satellite orbits during SNOs since TLE Epoch: 8/1/2025
SNOs_Map_NOAA-21_METOP-B_20250801.jpg

Download SNOs between NOAA-21 and METOP-B since TLE EPOCH: 08/01/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and METOP-B