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: 1/10/2025
Index Date Time (GOES-18) GOES-18 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 01/11/2025 22:34:56 -0.01,-136.99 -0.16,-137.65 75.20 80
2 01/12/2025 22:18:48 -0.01,-136.98 0.83,-133.10 441.27 80
3 01/14/2025 10:40:33 0.01,-136.96 0.35,-138.36 159.54 80
4 01/15/2025 10:19:06 0.01,-136.95 -0.70,-133.83 356.73 80
5 01/16/2025 22:40:58 -0.01,-136.94 -0.47,-139.12 247.80 80
6 01/17/2025 22:24:51 -0.01,-136.93 0.53,-134.57 268.51 80
7 01/19/2025 10:46:35 0.01,-136.91 0.64,-139.83 332.32 80
8 01/20/2025 10:25:08 0.00,-136.90 -0.36,-135.29 183.63 80
9 01/21/2025 22:46:59 -0.01,-136.88 -0.86,-140.57 421.70 80
10 01/22/2025 22:30:52 -0.01,-136.86 0.15,-136.03 94.00 80

Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 1/10/2025
SNOs_Map_GOES-18_NOAA-21_20250111.jpg

Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 01/10/2025 in txt file.

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