Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 6 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 06/09/2025   08:18:09   (  -0.00,-104.71) (  -0.24,-103.64)  121.87                80
 06/10/2025   20:40:06   (   0.00,-104.73) (  -0.96,-108.95)  481.57                80
 06/11/2025   20:24:03   (   0.01,-104.74) (   0.08,-104.43)   35.32                80
 06/14/2025   08:27:08   (  -0.01,-104.76) (   0.07,-105.18)   47.63                80
 06/15/2025   08:05:43   (  -0.01,-104.76) (  -0.91,-100.64)  469.17                80
 06/16/2025   20:27:41   (   0.01,-104.78) (  -0.23,-105.96)  134.45                80
 06/17/2025   20:11:37   (   0.01,-104.79) (   0.75,-101.43)  382.71                80
 06/19/2025   08:33:25   (  -0.00,-104.80) (   0.43,-106.70)  216.46                80
 06/20/2025   08:12:02   (  -0.01,-104.81) (  -0.61,-102.18)  300.43                80
 06/21/2025   20:33:59   (   0.00,-104.82) (  -0.59,-107.48)  303.73                80