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: 10/28/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 10/29/2025 10:39:32 -0.01,-136.99 0.25,-138.21 138.33 80
2 10/30/2025 10:18:05 -0.02,-137.00 -0.75,-133.67 379.09 80
3 10/31/2025 22:42:40 0.01,-137.00 -0.42,-138.96 223.69 80
4 11/01/2025 22:21:13 0.02,-137.00 0.59,-134.42 293.57 80
5 11/03/2025 10:45:37 -0.01,-136.99 0.59,-139.68 305.59 80
6 11/04/2025 10:24:11 -0.00,-136.99 -0.43,-135.14 211.32 80
7 11/05/2025 22:48:44 -0.01,-136.98 -0.79,-140.42 392.67 80
8 11/06/2025 22:27:18 -0.01,-136.97 0.23,-135.88 123.53 80
9 11/08/2025 10:51:42 0.02,-136.95 0.94,-141.14 477.40 80
10 11/09/2025 10:30:16 0.01,-136.93 -0.08,-136.60 38.28 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/28/2025
SNOs_Map_GOES-18_NOAA-21_20251029.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 10/28/2025 in txt file.

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