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: 7/16/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/17/2025 19:08:27 0.05, -89.53 0.94, -85.66 441.45 80
2 07/19/2025 07:27:34 -0.06, -89.50 0.25, -90.93 162.37 80
3 07/20/2025 07:11:30 -0.06, -89.51 -0.75, -86.40 354.32 80
4 07/21/2025 19:30:47 0.08, -89.55 -0.43, -91.70 246.54 80
5 07/22/2025 19:14:42 0.07, -89.55 0.58, -87.17 270.25 80
6 07/24/2025 07:33:51 -0.09, -89.52 0.56, -92.45 333.38 80
7 07/25/2025 07:17:46 -0.08, -89.53 -0.45, -87.92 183.91 80
8 07/26/2025 19:37:04 0.09, -89.59 -0.72, -93.23 415.46 80
9 07/27/2025 19:20:59 0.09, -89.60 0.29, -88.70 102.37 80
10 07/29/2025 07:40:06 -0.10, -89.59 0.91, -93.96 499.84 80
11 07/30/2025 07:24:02 -0.09, -89.60 -0.10, -89.43 18.60 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/16/2025
SNOs_Map_GOES-17_NOAA-21_20250717.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 07/16/2025 in txt file.

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