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: 8/12/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/12/2025 19:21:00 0.14, -89.52 0.30, -88.70 92.13 80
2 08/15/2025 07:24:04 -0.15, -89.48 -0.18, -89.45 4.28 80
3 08/17/2025 19:24:34 0.16, -89.51 -0.02, -90.22 80.55 80
4 08/18/2025 19:08:30 0.16, -89.51 1.01, -85.69 435.97 80
5 08/20/2025 07:27:38 -0.17, -89.48 0.14, -90.96 168.96 80
6 08/21/2025 07:11:33 -0.17, -89.48 -0.83, -86.42 347.88 80
7 08/22/2025 19:30:49 0.18, -89.53 -0.32, -91.73 251.31 80
8 08/23/2025 19:14:45 0.18, -89.54 0.72, -87.20 266.24 80
9 08/25/2025 07:36:32 -0.19, -89.52 0.50, -92.47 336.89 80
10 08/26/2025 07:15:52 -0.18, -89.53 -0.53, -87.94 180.87 35

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/12/2025
SNOs_Map_GOES-17_NOAA-21_20250813.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 08/12/2025 in txt file.

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