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: 10/21/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 10/21/2025 19:35:17 0.19, -89.53 0.00, -91.68 239.94 0
2 10/22/2025 19:15:09 0.20, -89.54 0.73, -87.08 279.01 80
3 10/24/2025 07:39:38 -0.17, -89.52 0.46, -92.35 322.25 80
4 10/25/2025 07:18:15 -0.19, -89.52 -0.57, -87.82 193.99 80
5 10/26/2025 19:42:51 0.16, -89.55 -0.66, -93.11 406.34 80
6 10/27/2025 19:21:28 0.18, -89.56 0.38, -88.58 110.51 80
7 10/29/2025 07:45:57 -0.15, -89.55 0.81, -93.85 489.59 80
8 10/30/2025 07:24:33 -0.17, -89.56 -0.23, -89.33 26.92 80
9 11/01/2025 19:30:26 0.15, -89.60 0.06, -90.09 55.92 80
10 11/02/2025 19:09:03 0.17, -89.61 1.10, -85.57 461.54 80
11 11/04/2025 07:33:31 -0.13, -89.62 0.13, -90.82 137.22 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 10/21/2025
SNOs_Map_GOES-17_NPP_20251022.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 10/21/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP