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: 6/23/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/24/2025 10:21:38 -0.02,-137.00 -0.73,-133.92 350.91 80
2 06/25/2025 22:40:55 0.02,-137.01 -0.48,-139.23 253.33 80
3 06/26/2025 22:24:50 0.01,-137.01 0.51,-134.70 262.97 80
4 06/28/2025 10:43:59 -0.01,-137.00 0.65,-139.97 338.28 80
5 06/29/2025 10:27:54 0.00,-137.00 -0.35,-135.44 178.06 80
6 06/30/2025 22:47:12 -0.00,-137.01 -0.86,-140.74 426.33 80
7 07/01/2025 22:31:08 -0.01,-137.00 0.19,-136.22 89.85 80
8 07/04/2025 10:31:31 0.01,-136.99 0.02,-136.95 4.40 80
9 07/06/2025 22:34:45 0.00,-136.97 -0.17,-137.74 87.13 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/23/2025
SNOs_Map_GOES-18_NOAA-21_20250624.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 06/23/2025 in txt file.

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