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: 6/18/2025
Index Date Time (GOES-15) GOES-15 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 06/20/2025 09:29:21 0.17, 61.27 -0.33, 59.07 250.38 80
2 06/21/2025 09:13:16 0.16, 61.26 0.67, 63.61 266.81 80
3 06/22/2025 21:32:26 -0.20, 61.32 0.49, 58.33 340.28 80
4 06/23/2025 21:16:21 -0.18, 61.32 -0.51, 62.87 176.37 80
5 06/25/2025 09:35:39 0.22, 61.27 -0.62, 57.56 423.06 80
6 06/26/2025 09:19:34 0.21, 61.27 0.38, 62.09 93.52 80
7 06/28/2025 21:22:39 -0.22, 61.33 -0.23, 61.35 2.72 80
8 07/01/2025 09:23:11 0.24, 61.28 0.05, 60.59 79.85 80
9 07/02/2025 09:07:06 0.22, 61.29 1.06, 65.12 436.88 80

Figure of GOES-15 and NPP satellite orbits during SNOs since TLE Epoch: 6/18/2025
SNOs_Map_GOES-15_NPP_20250619.jpg

Download SNOs between GOES-15 and NPP since TLE EPOCH: 06/18/2025 in txt file.

Historical Predications of SNOs between GOES-15 and NPP