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: 5/16/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 05/16/2025 20:36:27 0.01,-104.42 0.00,-107.53 346.44 0
2 05/17/2025 20:18:53 0.01,-104.42 0.38,-102.86 178.02 80
3 05/19/2025 08:40:41 -0.01,-104.40 0.84,-108.12 425.03 80
4 05/20/2025 08:19:18 -0.01,-104.39 -0.18,-103.60 90.89 80
5 05/22/2025 20:25:11 0.00,-104.41 -0.01,-104.37 5.56 80
6 05/25/2025 08:28:17 -0.00,-104.39 0.14,-105.11 81.45 80
7 05/26/2025 08:06:53 -0.00,-104.39 -0.83,-100.57 434.30 80
8 05/27/2025 20:28:51 -0.00,-104.40 -0.31,-105.89 168.88 80
9 05/28/2025 20:12:47 -0.01,-104.40 0.67,-101.35 347.39 80
10 05/30/2025 08:34:36 0.01,-104.38 0.50,-106.62 254.80 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 5/16/2025
SNOs_Map_GOES-17_NPP_20250517.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 05/16/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP