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: 7/12/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/14/2025 07:21:17 -0.05, -89.38 -0.03, -89.40 3.29 80
2 07/16/2025 19:24:30 0.06, -89.20 -0.16, -90.17 110.60 80
3 07/17/2025 19:08:25 0.05, -89.13 0.85, -85.64 397.39 80
4 07/19/2025 07:27:32 -0.06, -88.99 0.35, -90.91 218.27 80
5 07/20/2025 07:11:28 -0.06, -88.91 -0.66, -86.38 289.83 80
6 07/21/2025 19:30:44 0.08, -88.82 -0.59, -91.67 325.60 80
7 07/22/2025 19:14:40 0.08, -88.74 0.42, -87.14 182.41 80
8 07/24/2025 07:33:47 -0.09, -88.60 0.78, -92.40 433.45 80
9 07/25/2025 07:17:43 -0.08, -88.53 -0.23, -87.87 75.24 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/12/2025
SNOs_Map_GOES-17_NOAA-21_20250713.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 07/12/2025 in txt file.

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