Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-18 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/11/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 11/11/2025 22:33:51 0.01,-137.00 -0.08,-137.46 52.86 80
2 11/12/2025 22:15:08 0.02,-137.00 0.92,-132.94 462.76 80
3 11/14/2025 10:39:39 -0.01,-136.99 0.27,-138.21 139.36 80
4 11/15/2025 10:18:16 -0.02,-136.99 -0.74,-133.69 376.11 80
5 11/16/2025 22:42:56 0.01,-137.00 -0.44,-139.01 229.02 80
6 11/17/2025 22:21:34 0.01,-137.00 0.57,-134.49 286.33 80
7 11/19/2025 10:46:04 0.00,-136.98 0.61,-139.76 316.39 80
8 11/20/2025 10:24:42 0.00,-136.98 -0.41,-135.24 198.31 80
9 11/21/2025 22:49:21 -0.01,-136.97 -0.81,-140.55 408.45 80
10 11/22/2025 22:27:59 -0.01,-136.95 0.21,-136.03 105.83 80
11 11/24/2025 10:52:28 0.01,-136.93 1.01,-141.29 498.22 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/11/2025
SNOs_Map_GOES-18_NOAA-21_20251112.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 11/11/2025 in txt file.

Historical Predications of SNOs between GOES-18 and NOAA-21