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: 8/24/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/24/2025 22:18:45 0.03,-136.99 0.89,-133.23 428.68 80
2 08/26/2025 10:37:53 -0.03,-136.98 0.32,-138.49 172.37 80
3 08/27/2025 10:21:48 -0.03,-136.99 -0.71,-133.97 344.24 80
4 08/28/2025 22:41:03 0.04,-136.99 -0.49,-139.26 259.35 80
5 08/29/2025 22:24:59 0.04,-136.99 0.55,-134.74 256.80 80
6 08/31/2025 10:44:07 -0.04,-136.97 0.61,-140.01 345.74 80
7 09/01/2025 10:28:02 -0.05,-136.96 -0.37,-135.47 169.80 80
8 09/02/2025 22:47:17 0.05,-136.95 -0.82,-140.77 435.44 80
9 09/03/2025 22:31:13 0.05,-136.94 0.22,-136.24 79.76 80
10 09/06/2025 10:31:35 -0.06,-136.90 -0.05,-136.98 9.02 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/24/2025
SNOs_Map_GOES-18_NOAA-21_20250825.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 08/24/2025 in txt file.

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