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: 9/13/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 09/14/2025 19:26:45 0.23, -89.52 0.09, -90.04 60.35 80
2 09/15/2025 19:10:43 0.23, -89.52 1.12, -85.52 455.51 80
3 09/17/2025 07:32:33 -0.23, -89.48 0.06, -90.79 149.89 80
4 09/18/2025 07:11:11 -0.24, -89.48 -0.96, -86.27 366.09 80
5 09/19/2025 19:33:10 0.24, -89.53 -0.23, -91.58 233.53 80
6 09/20/2025 19:17:07 0.24, -89.54 0.80, -87.06 283.37 80
7 09/22/2025 07:38:58 -0.23, -89.52 0.39, -92.33 319.94 80
8 09/23/2025 07:17:35 -0.24, -89.53 -0.64, -87.81 196.85 80
9 09/24/2025 19:39:35 0.23, -89.58 -0.54, -93.12 402.30 80
10 09/25/2025 19:23:31 0.24, -89.60 0.44, -88.58 114.95 80
11 09/27/2025 07:45:21 -0.23, -89.58 0.75, -93.85 487.56 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 9/13/2025
SNOs_Map_GOES-17_NPP_20250914.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 09/13/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP