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: 8/19/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 08/21/2025 07:37:48 -0.18, -89.46 0.42, -92.15 306.06 80
2 08/22/2025 07:19:03 -0.18, -89.46 -0.62, -87.62 210.87 80
3 08/23/2025 19:38:19 0.19, -89.51 -0.57, -92.91 387.77 80
4 08/24/2025 19:22:14 0.19, -89.52 0.42, -88.37 129.81 80
5 08/26/2025 07:44:01 -0.19, -89.48 0.72, -93.64 473.41 80
6 08/27/2025 07:22:36 -0.19, -89.49 -0.27, -89.10 44.22 80
7 08/29/2025 19:25:48 0.19, -89.55 0.15, -89.87 36.09 80
8 08/30/2025 19:09:42 0.20, -89.56 1.14, -85.33 481.76 80
9 09/01/2025 07:31:28 -0.20, -89.53 0.05, -90.59 121.15 80
10 09/02/2025 07:10:04 -0.21, -89.53 -1.00, -86.06 396.49 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 8/19/2025
SNOs_Map_GOES-17_NPP_20250820.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 08/19/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP