Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 3 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)
 03/13/2025   20:11:31   (   0.03,-104.41) (   0.73,-101.35)  349.69                80
 03/15/2025   08:33:17   (  -0.03,-104.39) (   0.47,-106.61)  253.30                80
 03/16/2025   08:11:53   (  -0.03,-104.39) (  -0.56,-102.09)  263.18                80
 03/17/2025   20:33:49   (   0.03,-104.42) (  -0.63,-107.39)  338.49                80
 03/18/2025   20:17:44   (   0.03,-104.42) (   0.35,-102.85)  178.05                80
 03/20/2025   08:39:31   (  -0.03,-104.39) (   0.79,-108.13)  425.09                80
 03/21/2025   08:18:06   (  -0.03,-104.39) (  -0.20,-103.59)   91.16                80
 03/23/2025   20:23:56   (   0.01,-104.41) (   0.02,-104.36)    5.60                80
 03/26/2025   08:26:57   (  -0.00,-104.38) (   0.18,-105.08)   81.14                80