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: 9/15/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 09/15/2025 19:10:43 0.23, -89.52 1.11, -85.52 455.59 80
2 09/17/2025 07:32:33 -0.24, -89.48 0.07, -90.79 150.12 80
3 09/18/2025 07:11:11 -0.24, -89.48 -0.96, -86.27 365.81 80
4 09/19/2025 19:33:10 0.24, -89.53 -0.24, -91.58 233.65 80
5 09/20/2025 19:17:07 0.24, -89.54 0.80, -87.05 283.19 80
6 09/22/2025 07:38:58 -0.23, -89.51 0.38, -92.33 320.40 80
7 09/23/2025 07:17:35 -0.24, -89.52 -0.65, -87.81 196.35 80
8 09/24/2025 19:39:33 0.23, -89.58 -0.59, -93.10 402.66 80
9 09/25/2025 19:23:31 0.24, -89.59 0.45, -88.58 114.53 80
10 09/27/2025 07:45:21 -0.23, -89.57 0.73, -93.86 488.22 80
11 09/28/2025 07:23:59 -0.24, -89.58 -0.31, -89.33 28.50 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 9/15/2025
SNOs_Map_GOES-17_NPP_20250916.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 09/15/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP