Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-15 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/20/2026
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 04/21/2026 09:19:16 -0.58, 63.23 -0.44, 63.78 63.66 80
2 04/23/2026 21:19:45 0.54, 63.30 0.62, 63.04 30.65 80
3 04/24/2026 21:03:42 0.60, 63.31 -0.37, 67.57 486.05 80
4 04/26/2026 09:23:05 -0.49, 63.25 -0.73, 62.24 115.01 80
5 04/27/2026 09:07:02 -0.54, 63.25 0.26, 66.77 402.01 80
6 04/28/2026 21:26:14 0.43, 63.31 0.84, 61.48 208.68 80
7 04/29/2026 21:10:12 0.48, 63.32 -0.15, 66.01 307.90 80
8 05/01/2026 09:29:34 -0.36, 63.27 -0.94, 60.68 294.47 80
9 05/02/2026 09:13:31 -0.42, 63.27 -0.01, 65.23 222.15 80
10 05/03/2026 21:32:44 0.30, 63.34 1.04, 59.93 388.93 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 4/20/2026
SNOs_Map_GOES-15_NPP_20260421.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 04/20/2026 in txt file.

Historical Predications of SNOs between GOES-15 and NPP