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: 8/24/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/25/2025 07:36:32 -0.19, -89.47 0.48, -92.47 341.46 80
2 08/26/2025 07:17:48 -0.19, -89.47 -0.55, -87.94 175.53 80
3 08/27/2025 19:37:03 0.19, -89.52 -0.65, -93.24 423.33 80
4 08/28/2025 19:20:59 0.19, -89.53 0.38, -88.71 93.87 80
5 08/31/2025 07:21:21 -0.20, -89.50 -0.21, -89.44 6.66 80
6 09/02/2025 19:24:32 0.21, -89.56 0.05, -90.22 75.17 80
7 09/03/2025 19:08:28 0.21, -89.57 1.10, -85.69 442.13 80
8 09/05/2025 07:30:15 -0.22, -89.54 0.12, -90.95 161.57 80
9 09/06/2025 07:08:51 -0.22, -89.55 -0.92, -86.43 355.86 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/24/2025
SNOs_Map_GOES-17_NOAA-21_20250825.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 08/24/2025 in txt file.

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