Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/18/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 04/20/2025 11:50:43 74.37, -9.45 62.92 04/20/2025 11:51:49 74.22, -6.70 62.62 84.26 66
2 04/20/2025 12:41:12 -73.60, 159.74 117.95 04/20/2025 12:41:21 -73.61, 159.63 117.94 3.60 9
3 04/20/2025 13:31:54 73.44, -32.58 61.86 04/20/2025 13:30:42 73.48, -32.97 61.94 13.16 72
4 04/22/2025 23:02:48 73.64,-175.75 61.27 04/22/2025 23:03:14 73.66,-175.79 61.29 2.94 26
5 04/22/2025 23:53:31 -73.56, -8.25 118.83 04/22/2025 23:52:36 -73.58, -8.30 118.80 2.31 55
6 04/25/2025 09:24:24 -73.67,-151.21 119.51 04/25/2025 09:25:10 -73.68,-151.28 119.50 2.51 46
7 04/25/2025 10:15:08 73.61, 16.24 60.42 04/25/2025 10:14:30 73.58, 16.19 60.40 3.12 38
8 04/27/2025 19:46:01 73.72,-126.75 59.78 04/27/2025 19:47:02 73.74,-126.66 59.78 3.51 61
9 04/27/2025 20:36:44 -73.64, 40.75 120.32 04/27/2025 20:36:25 -73.62, 40.75 120.34 2.30 19
10 04/30/2025 06:07:43 -74.07,-102.98 120.60 04/30/2025 06:08:53 -73.97,-101.71 120.78 40.41 70
11 04/30/2025 06:58:20 73.66, 65.31 58.94 04/30/2025 06:58:17 73.64, 65.27 58.93 2.42 3

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/18/2025
SNOs_Map_NOAA-21_TERRA_20250418.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 04/18/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA