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: 4/22/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 04/22/2025 22:39:57 -0.00,-136.99 -0.46,-138.98 226.17 80
2 04/23/2025 22:23:51 -0.00,-137.00 0.56,-134.44 291.54 80
3 04/25/2025 10:45:36 0.00,-137.00 0.61,-139.70 307.90 80
4 04/26/2025 10:24:09 0.00,-137.00 -0.41,-135.16 209.37 80
5 04/27/2025 22:46:02 0.00,-137.00 -0.80,-140.45 393.57 80
6 04/28/2025 22:29:55 0.00,-136.99 0.23,-135.91 123.18 80
7 04/30/2025 10:51:41 -0.00,-136.98 0.94,-141.17 477.88 80
8 05/01/2025 10:30:14 0.01,-136.97 -0.09,-136.64 38.66 80
9 05/03/2025 22:33:19 -0.02,-136.94 -0.12,-137.37 49.14 80
10 05/04/2025 22:17:12 -0.02,-136.93 0.91,-132.84 467.16 80
11 05/06/2025 10:36:17 0.02,-136.91 0.30,-138.09 134.40 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/22/2025
SNOs_Map_GOES-18_NOAA-21_20250423.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 04/22/2025 in txt file.

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