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: 1/20/2026
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 01/22/2026 21:23:48 0.80, 61.40 0.76, 61.47 8.61 80
2 01/25/2026 09:29:41 -0.83, 61.52 -0.99, 60.71 91.42 80
3 01/26/2026 09:08:18 -0.80, 61.53 0.03, 65.24 423.12 80
4 01/27/2026 21:32:46 0.87, 61.46 1.21, 59.99 168.40 80
5 01/28/2026 21:11:23 0.84, 61.48 0.19, 64.52 345.11 80
6 01/30/2026 09:36:00 -0.90, 61.61 -1.41, 59.22 271.21 80
7 01/31/2026 09:14:37 -0.87, 61.63 -0.38, 63.75 242.81 80
8 02/01/2026 21:39:05 0.92, 61.56 1.61, 58.50 348.70 80
9 02/02/2026 21:17:41 0.90, 61.58 0.58, 63.03 164.89 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 1/20/2026
SNOs_Map_GOES-15_NPP_20260121.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 01/20/2026 in txt file.

Historical Predications of SNOs between GOES-15 and NPP