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: 8/14/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/15/2025 07:24:03 -0.15, -89.47 -0.17, -89.45 3.43 80
2 08/17/2025 19:24:35 0.16, -89.52 0.02, -90.22 80.15 80
3 08/18/2025 19:08:30 0.16, -89.52 1.00, -85.68 436.41 80
4 08/20/2025 07:27:38 -0.17, -89.48 0.16, -90.96 168.85 80
5 08/21/2025 07:11:33 -0.17, -89.48 -0.87, -86.43 348.01 80
6 08/22/2025 19:30:49 0.18, -89.53 -0.34, -91.73 250.71 80
7 08/23/2025 19:14:44 0.18, -89.54 0.70, -87.20 266.90 80
8 08/25/2025 07:36:33 -0.19, -89.52 0.46, -92.48 336.55 80
9 08/26/2025 07:15:07 -0.18, -89.53 -0.52, -87.93 181.27 80
10 08/27/2025 19:37:03 0.19, -89.59 -0.62, -93.25 416.51 80
11 08/28/2025 19:20:58 0.19, -89.60 0.36, -88.71 101.58 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/14/2025
SNOs_Map_GOES-17_NOAA-21_20250815.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 08/14/2025 in txt file.

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