Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 1 17.  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)
 01/19/2023   18:26:43   (   0.04, -75.19) (  -0.09, -75.74)   62.24                80
 01/20/2023   18:10:37   (   0.03, -75.19) (   0.91, -71.20)  454.33                80
 01/22/2023   06:32:25   (  -0.04, -75.19) (   0.24, -76.48)  146.88                80
 01/23/2023   06:10:59   (  -0.04, -75.19) (  -0.75, -71.94)  369.98                80
 01/24/2023   18:32:54   (   0.04, -75.21) (  -0.43, -77.25)  232.79                80
 01/25/2023   18:16:49   (   0.04, -75.22) (   0.57, -72.71)  284.84                80
 01/27/2023   06:38:36   (  -0.04, -75.23) (   0.57, -77.99)  314.37                80
 01/28/2023   06:17:11   (  -0.04, -75.24) (  -0.44, -73.46)  203.63                80
 01/29/2023   18:39:06   (   0.03, -75.27) (  -0.74, -78.76)  397.67                80
 01/30/2023   18:23:01   (   0.03, -75.29) (   0.28, -74.23)  120.75                80