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: 8/15/2025
Index Date Time (GOES-17) GOES-17 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 08/17/2025 19:24:35 0.16, -89.52 -0.01, -90.22 80.02 80
2 08/18/2025 19:08:30 0.16, -89.52 1.02, -85.69 436.51 80
3 08/20/2025 07:27:37 -0.17, -89.48 0.19, -90.95 168.98 80
4 08/21/2025 07:11:33 -0.17, -89.48 -0.84, -86.42 347.91 80
5 08/22/2025 19:30:49 0.18, -89.53 -0.31, -91.73 250.59 80
6 08/23/2025 19:14:45 0.18, -89.54 0.72, -87.21 267.00 80
7 08/25/2025 07:36:32 -0.19, -89.52 0.49, -92.47 336.66 80
8 08/26/2025 07:15:08 -0.18, -89.53 -0.54, -87.94 181.13 80
9 08/27/2025 19:37:04 0.19, -89.59 -0.60, -93.25 416.46 80
10 08/28/2025 19:20:58 0.19, -89.60 0.38, -88.71 101.58 80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/15/2025
SNOs_Map_GOES-17_NOAA-21_20250816.jpg

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 08/15/2025 in txt file.

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