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: 6/25/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/25/2025 22:40:55 0.02,-137.00 -0.47,-139.23 253.47 80
2 06/26/2025 22:24:51 0.01,-137.00 0.53,-134.70 262.74 80
3 06/28/2025 10:43:59 -0.01,-137.00 0.63,-139.97 338.66 80
4 06/29/2025 10:27:55 -0.00,-137.00 -0.37,-135.44 177.60 80
5 06/30/2025 22:47:12 0.00,-137.00 -0.84,-140.74 426.98 80
6 07/01/2025 22:31:07 -0.00,-137.00 0.15,-136.21 89.10 80
7 07/04/2025 10:34:11 -0.00,-136.98 -0.00,-136.96 2.75 80
8 07/06/2025 22:34:45 0.01,-136.96 -0.14,-137.74 88.17 80
9 07/07/2025 22:18:41 0.01,-136.95 0.86,-133.21 426.73 80
10 07/09/2025 10:37:48 -0.01,-136.92 0.35,-138.47 177.19 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/25/2025
SNOs_Map_GOES-18_NOAA-21_20250626.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 06/25/2025 in txt file.

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