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: 9/5/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 09/06/2025 07:38:26 -0.22, -89.48 0.37, -92.26 315.53 80
2 09/07/2025 07:17:03 -0.22, -89.48 -0.59, -87.72 200.11 80
3 09/08/2025 19:39:03 0.22, -89.52 -0.58, -93.04 401.54 80
4 09/09/2025 19:23:01 0.22, -89.52 0.44, -88.51 114.51 80
5 09/11/2025 07:44:51 -0.22, -89.49 0.74, -93.79 489.84 80
6 09/12/2025 07:23:29 -0.22, -89.49 -0.29, -89.27 25.86 80
7 09/14/2025 19:26:45 0.23, -89.52 0.11, -90.05 60.36 80
8 09/15/2025 19:10:43 0.23, -89.52 1.14, -85.53 455.61 80
9 09/17/2025 07:32:33 -0.23, -89.50 0.03, -90.80 148.23 80
10 09/18/2025 07:11:10 -0.24, -89.50 -0.94, -86.27 367.98 80
11 09/19/2025 19:33:09 0.24, -89.54 -0.24, -91.58 232.71 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 9/5/2025
SNOs_Map_GOES-17_NPP_20250906.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 09/05/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP