Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-15 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/19/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 10/21/2025 09:27:40 0.36, 61.47 0.16, 60.53 106.13 80
2 10/22/2025 09:06:17 0.40, 61.47 1.18, 65.06 408.60 80
3 10/23/2025 21:30:45 -0.33, 61.50 0.07, 59.81 192.92 80
4 10/24/2025 21:09:23 -0.37, 61.52 -1.02, 64.32 320.25 80
5 10/26/2025 09:33:58 0.29, 61.55 -0.27, 59.05 284.86 80
6 10/27/2025 09:12:35 0.34, 61.56 0.77, 63.57 229.03 80
7 10/28/2025 21:37:03 -0.26, 61.58 0.48, 58.32 371.75 80
8 10/29/2025 21:15:39 -0.31, 61.60 -0.56, 62.84 140.80 80
9 10/31/2025 09:40:15 0.23, 61.65 -0.71, 57.57 466.38 80
10 11/01/2025 09:18:52 0.28, 61.67 0.40, 62.08 47.23 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 10/19/2025
SNOs_Map_GOES-15_NPP_20251020.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 10/19/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP