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: 6/27/2026
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/28/2026 22:40:54 -0.00,-136.99 -0.43,-139.00 227.93 80
2 06/29/2026 22:24:49 -0.01,-136.98 0.55,-134.46 287.16 80
3 07/01/2026 10:46:38 0.01,-136.97 0.64,-139.74 315.97 80
4 07/02/2026 10:25:13 0.02,-136.95 -0.35,-135.20 198.72 80
5 07/03/2026 22:47:12 -0.02,-136.94 -0.80,-140.53 408.65 80
6 07/04/2026 22:31:07 -0.02,-136.92 0.19,-135.99 105.85 80
7 07/06/2026 10:52:55 0.02,-136.90 0.99,-141.27 497.91 80
8 07/07/2026 10:31:31 0.02,-136.88 0.00,-136.74 16.11 80
9 07/09/2026 22:34:45 -0.03,-136.83 -0.16,-137.53 79.29 80
10 07/10/2026 22:18:40 -0.03,-136.80 0.83,-133.00 433.98 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/27/2026
SNOs_Map_GOES-18_NOAA-21_20260628.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 06/27/2026 in txt file.

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