Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 10 20.  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)
 10/21/2025   08:05:11   (  -0.03,-104.69) (  -0.95,-100.48)  478.88                80
 10/22/2025   20:27:06   (   0.02,-104.69) (  -0.24,-105.78)  124.31                80
 10/23/2025   20:10:59   (   0.02,-104.69) (   0.76,-101.24)  392.83                80
 10/25/2025   08:32:44   (  -0.01,-104.68) (   0.39,-106.50)  206.39                80
 10/26/2025   08:11:18   (  -0.01,-104.68) (  -0.62,-101.96)  310.06                80
 10/27/2025   20:33:12   (   0.01,-104.67) (  -0.56,-107.25)  294.30                80
 10/28/2025   20:17:06   (   0.01,-104.66) (   0.45,-102.71)  222.56                80
 10/30/2025   08:38:50   (  -0.01,-104.67) (   0.74,-107.96)  375.94                80
 10/31/2025   08:17:24   (  -0.01,-104.66) (  -0.27,-103.42)  140.60                80
 11/01/2025   20:39:18   (   0.00,-104.64) (  -0.89,-108.72)  464.11                80
 11/02/2025   20:23:11   (   0.01,-104.64) (   0.13,-104.18)   53.04                80