Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-17 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/20/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 10/21/2025 19:36:33 0.19, -89.53 -0.27, -91.62 237.82 80
2 10/22/2025 19:15:09 0.20, -89.54 0.76, -87.09 278.99 80
3 10/24/2025 07:39:38 -0.17, -89.52 0.49, -92.34 322.26 80
4 10/25/2025 07:18:15 -0.19, -89.52 -0.60, -87.83 194.03 80
5 10/26/2025 19:42:51 0.16, -89.55 -0.63, -93.12 406.30 80
6 10/27/2025 19:21:28 0.18, -89.56 0.40, -88.59 110.54 80
7 10/29/2025 07:45:56 -0.15, -89.56 0.84, -93.84 489.52 80
8 10/30/2025 07:24:33 -0.17, -89.56 -0.20, -89.32 27.17 80
9 11/01/2025 19:30:26 0.15, -89.60 0.02, -90.09 55.84 80
10 11/02/2025 19:09:02 0.17, -89.61 1.07, -85.56 461.68 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 10/20/2025
SNOs_Map_GOES-17_NPP_20251021.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 10/20/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP