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: 5/24/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 05/24/2025 22:43:13 -0.00,-137.01 -0.47,-139.13 242.16 80
2 05/25/2025 22:24:29 -0.00,-137.01 0.56,-134.61 273.75 80
3 05/27/2025 10:43:38 0.01,-136.99 0.63,-139.88 328.90 80
4 05/28/2025 10:27:34 0.01,-136.99 -0.34,-135.35 186.53 80
5 05/29/2025 22:46:51 -0.01,-136.98 -0.85,-140.65 418.92 80
6 05/30/2025 22:30:48 -0.01,-136.97 0.18,-136.13 96.23 80
7 06/02/2025 10:33:53 0.01,-136.95 0.02,-136.87 8.60 80
8 06/04/2025 22:34:27 -0.01,-136.93 -0.18,-137.66 82.70 80
9 06/05/2025 22:18:23 -0.01,-136.92 0.85,-133.13 432.18 80
10 06/07/2025 10:37:31 0.02,-136.89 0.37,-138.40 171.82 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 5/24/2025
SNOs_Map_GOES-18_NOAA-21_20250525.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 05/24/2025 in txt file.

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