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: 7/26/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/27/2025 22:41:05 -0.00,-137.00 -0.51,-139.27 258.12 80
2 07/28/2025 22:25:01 -0.01,-137.00 0.51,-134.74 258.06 80
3 07/30/2025 10:46:48 0.01,-136.99 0.69,-140.00 343.89 80
4 07/31/2025 10:25:23 0.01,-136.98 -0.32,-135.47 171.86 80
5 08/01/2025 22:47:21 -0.01,-136.98 -0.83,-140.79 433.12 80
6 08/02/2025 22:31:15 -0.01,-136.97 0.13,-136.24 82.26 80
7 08/05/2025 10:31:39 0.01,-136.93 -0.00,-136.99 7.09 80
8 08/07/2025 22:34:50 -0.02,-136.89 -0.23,-137.75 98.44 80
9 08/08/2025 22:18:46 -0.02,-136.87 0.79,-133.22 415.91 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/26/2025
SNOs_Map_GOES-18_NOAA-21_20250727.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 07/26/2025 in txt file.

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