Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-17 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 6/22/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/22/2025 20:16:27 0.02, -99.61 0.00,-102.85 361.14 0
2 06/23/2025 19:58:50 0.02, -99.07 0.23, -98.15 104.81 80
3 06/26/2025 07:59:09 -0.02, -97.69 0.24, -98.82 129.33 80
4 06/27/2025 07:43:02 -0.01, -97.15 -0.64, -94.26 328.84 80
5 06/28/2025 20:02:18 0.00, -96.35 -0.68, -99.54 362.79 80
6 06/29/2025 19:46:11 -0.00, -95.82 0.19, -94.98 95.81 80
7 07/02/2025 07:46:30 0.01, -94.46 0.26, -95.66 136.09 80
8 07/03/2025 07:30:23 0.01, -93.93 -0.62, -91.10 322.78 80
9 07/04/2025 19:49:38 -0.00, -93.14 -0.76, -96.37 368.17 80
10 07/05/2025 19:33:32 -0.00, -92.62 0.18, -91.82 90.65 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/22/2025
SNOs_Map_GOES-17_NOAA-21_20250623.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 06/22/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NOAA-21