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: 7/19/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 07/20/2025 07:35:10 -0.07, -89.49 0.54, -92.25 314.92 80
2 07/21/2025 07:19:06 -0.07, -89.49 -0.48, -87.72 201.70 80
3 07/22/2025 19:38:22 0.08, -89.52 -0.71, -93.02 398.28 80
4 07/23/2025 19:22:18 0.08, -89.53 0.31, -88.48 118.56 80
5 07/25/2025 07:41:26 -0.09, -89.49 0.85, -93.75 485.27 80
6 07/26/2025 07:25:22 -0.09, -89.50 -0.17, -89.22 32.28 80
7 07/28/2025 19:25:53 0.09, -89.56 0.00, -89.99 48.29 80
8 07/29/2025 19:09:49 0.09, -89.57 1.03, -85.45 469.72 80
9 07/31/2025 07:28:56 -0.10, -89.55 0.17, -90.71 132.65 80
10 08/01/2025 07:12:52 -0.10, -89.56 -0.85, -86.18 385.50 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 7/19/2025
SNOs_Map_GOES-17_NPP_20250720.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 07/19/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP