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: 8/10/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 08/10/2025 21:16:12 -0.48, 61.57 -0.82, 62.95 157.07 61
2 08/12/2025 09:35:48 0.50, 61.53 -0.38, 57.65 442.32 80
3 08/13/2025 09:19:43 0.49, 61.54 0.65, 62.18 73.34 80
4 08/15/2025 21:22:45 -0.50, 61.65 -0.48, 61.46 21.30 80
5 08/16/2025 21:01:20 -0.50, 61.67 -1.46, 66.00 493.15 80
6 08/18/2025 09:23:17 0.51, 61.64 0.33, 60.69 108.24 80
7 08/19/2025 09:07:11 0.51, 61.66 1.31, 65.23 406.31 80
8 08/20/2025 21:28:58 -0.53, 61.76 -0.11, 59.98 203.34 80
9 08/21/2025 21:07:33 -0.52, 61.78 -1.15, 64.51 310.72 80
10 08/23/2025 09:29:29 0.53, 61.77 -0.03, 59.21 291.40 80
11 08/24/2025 09:13:24 0.53, 61.79 0.96, 63.75 223.35 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 8/10/2025
SNOs_Map_GOES-15_NPP_20250811.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 08/10/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP