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: 3/22/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NPP Lat,Lon Distance(km) Time Diff (sec)
1 03/23/2025 08:05:28 -0.04,-104.38 -0.94,-100.42 451.32 80
2 03/24/2025 20:27:22 0.03,-104.41 -0.26,-105.70 147.41 80
3 03/25/2025 20:11:15 0.02,-104.41 0.75,-101.16 370.10 80
4 03/27/2025 08:32:59 -0.02,-104.37 0.43,-106.41 232.43 80
5 03/28/2025 08:11:33 -0.02,-104.37 -0.59,-101.87 284.96 80
6 03/29/2025 20:33:26 0.02,-104.40 -0.59,-107.16 313.91 80
7 03/30/2025 20:17:20 0.02,-104.40 0.44,-102.62 203.60 80
8 04/01/2025 08:39:03 -0.02,-104.37 0.78,-107.86 398.83 80
9 04/02/2025 08:17:37 -0.02,-104.36 -0.26,-103.33 118.32 80
10 04/03/2025 20:39:29 0.02,-104.39 -0.96,-108.60 481.20 80
11 04/04/2025 20:23:22 0.01,-104.39 0.09,-104.07 36.32 80

Figure of GOES-17 and NPP satellite orbits during SNOs since TLE Epoch: 3/22/2025
SNOs_Map_GOES-17_NPP_20250323.jpg

Download SNOs between GOES-17 and NPP since TLE EPOCH: 03/22/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NPP