Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 8 14.  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)
 08/14/2023   20:25:09   (   0.03,-104.69) (  -0.16,-105.71)  115.84                80
 08/15/2023   20:09:03   (   0.04,-104.70) (   0.82,-101.17)  401.98                80
 08/17/2023   08:30:49   (  -0.04,-104.72) (   0.32,-106.44)  194.94                80
 08/18/2023   08:09:23   (  -0.04,-104.73) (  -0.68,-101.90)  322.82                80
 08/19/2023   20:31:17   (   0.04,-104.73) (  -0.49,-107.20)  281.40                80
 08/20/2023   20:15:10   (   0.04,-104.74) (   0.50,-102.66)  236.69                80
 08/22/2023   08:36:56   (  -0.05,-104.77) (   0.69,-107.92)  359.61                80
 08/23/2023   08:15:30   (  -0.05,-104.77) (  -0.37,-103.39)  158.00                80
 08/24/2023   20:37:23   (   0.05,-104.76) (  -0.85,-108.68)  447.28                80
 08/25/2023   20:21:18   (   0.05,-104.77) (   0.21,-104.15)   70.26                80
 08/28/2023   08:24:17   (  -0.07,-104.80) (  -0.03,-104.87)    9.65                80