Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-18 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 6/22/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/23/2025 10:37:41 -0.02,-136.99 0.33,-138.44 166.42 80
2 06/24/2025 10:21:38 -0.02,-136.98 -0.72,-133.92 348.89 80
3 06/25/2025 22:40:55 0.02,-136.98 -0.49,-139.23 256.70 80
4 06/26/2025 22:24:50 0.02,-136.97 0.51,-134.69 258.48 80
5 06/28/2025 10:43:59 -0.01,-136.94 0.65,-139.97 344.77 80
6 06/29/2025 10:27:54 0.00,-136.93 -0.35,-135.44 170.53 80
7 06/30/2025 22:47:12 -0.01,-136.92 -0.86,-140.74 435.11 80
8 07/01/2025 22:31:07 -0.01,-136.91 0.14,-136.21 79.94 80
9 07/04/2025 10:31:31 0.01,-136.87 0.02,-136.95 9.45 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/22/2025
SNOs_Map_GOES-18_NOAA-21_20250623.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 06/22/2025 in txt file.

Historical Predications of SNOs between GOES-18 and NOAA-21