Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-16 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/12/2025
Index Date Time (GOES-16) GOES-16 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/13/2025 20:24:18 -0.01,-104.72 0.06,-104.49 26.43 80
2 07/16/2025 08:27:21 0.01,-104.71 0.13,-105.23 58.62 80
3 07/17/2025 08:05:56 0.01,-104.71 -0.87,-100.69 457.55 80
4 07/18/2025 20:27:54 -0.02,-104.72 -0.32,-106.00 146.64 80
5 07/19/2025 20:11:49 -0.02,-104.72 0.69,-101.47 369.55 80
6 07/21/2025 08:33:36 0.03,-104.70 0.51,-106.73 232.02 80
7 07/22/2025 08:12:12 0.03,-104.70 -0.50,-102.20 283.87 80
8 07/23/2025 20:34:09 -0.04,-104.70 -0.68,-107.51 320.85 80
9 07/24/2025 20:18:05 -0.04,-104.70 0.33,-102.98 195.41 80
10 07/26/2025 08:39:53 0.05,-104.70 0.82,-108.26 405.37 80

Figure of GOES-16 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/12/2025
SNOs_Map_GOES-16_NOAA-21_20250713.jpg

Download SNOs between GOES-16 and NOAA-21 since TLE EPOCH: 07/12/2025 in txt file.

Historical Predications of SNOs between GOES-16 and NOAA-21