Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 9 6.  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)
 09/07/2025   08:33:35   (  -0.12,-104.66) (   0.37,-106.74)  237.83                80
 09/08/2025   08:12:11   (  -0.12,-104.66) (  -0.68,-102.22)  278.61                80
 09/09/2025   20:34:06   (   0.12,-104.67) (  -0.49,-107.52)  324.22                80
 09/10/2025   20:18:01   (   0.12,-104.67) (   0.51,-102.98)  192.44                80
 09/12/2025   08:39:48   (  -0.12,-104.66) (   0.68,-108.25)  409.28                80
 09/13/2025   08:18:22   (  -0.13,-104.65) (  -0.32,-103.71)  106.70                80
 09/14/2025   20:40:18   (   0.13,-104.65) (  -0.84,-109.02)  497.41                80
 09/15/2025   20:24:12   (   0.13,-104.65) (   0.16,-104.48)   18.87                80
 09/18/2025   08:27:14   (  -0.14,-104.64) (   0.02,-105.21)   66.17                80
 09/19/2025   08:05:50   (  -0.14,-104.63) (  -1.05,-100.69)  450.31                80