Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 1 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 01/13/2025   20:18:07   (   0.01,-104.65) (   0.43,-102.87)  203.12                80
 01/15/2025   08:39:52   (  -0.02,-104.71) (   0.75,-108.13)  389.91                80
 01/16/2025   08:18:24   (  -0.02,-104.71) (  -0.24,-103.58)  127.50                80
 01/17/2025   20:40:17   (   0.02,-104.65) (  -0.92,-108.88)  481.39                80
 01/18/2025   20:24:09   (   0.02,-104.66) (   0.07,-104.33)   36.74                80
 01/21/2025   08:27:07   (  -0.03,-104.73) (   0.04,-105.06)   37.20                80
 01/22/2025   08:05:40   (  -0.03,-104.73) (  -0.97,-100.52)  480.42                80
 01/23/2025   20:27:32   (   0.03,-104.68) (  -0.19,-105.81)  128.84                80
 01/24/2025   20:11:24   (   0.04,-104.68) (   0.81,-101.27)  388.98                80
 01/26/2025   08:33:09   (  -0.04,-104.75) (   0.34,-106.53)  202.94                80