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: 8/30/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/31/2025 07:21:21 -0.20, -89.50 -0.21, -89.44 6.73 80
2 09/02/2025 19:24:32 0.21, -89.55 0.06, -90.22 75.47 80
3 09/03/2025 19:08:27 0.21, -89.56 1.05, -85.68 441.81 80
4 09/05/2025 07:30:15 -0.22, -89.53 0.09, -90.95 161.58 80
5 09/06/2025 07:08:49 -0.22, -89.54 -0.90, -86.42 355.82 80
6 09/07/2025 19:30:45 0.22, -89.59 -0.27, -91.72 242.66 80
7 09/08/2025 19:14:40 0.22, -89.60 0.78, -87.19 275.29 80
8 09/10/2025 07:36:28 -0.22, -89.59 0.41, -92.46 326.88 80
9 09/11/2025 07:15:02 -0.22, -89.60 -0.58, -87.92 190.80 80
10 09/12/2025 19:36:57 0.22, -89.64 -0.57, -93.22 407.86 80
11 09/13/2025 19:20:52 0.23, -89.66 0.43, -88.69 109.95 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/30/2025
SNOs_Map_GOES-17_NOAA-21_20250831.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 08/30/2025 in txt file.

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