Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 12 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 12/13/2021   22:01:41   (   0.02,-127.80) (  -0.35,-129.55)  198.99                80
 12/14/2021   21:45:34   (   0.00,-127.77) (   0.61,-125.01)  314.46                80
 12/16/2021   10:04:41   (  -0.02,-127.70) (   0.58,-130.27)  292.76                80
 12/17/2021   09:48:35   (  -0.01,-127.66) (  -0.44,-125.73)  220.12                80
 12/18/2021   22:07:50   (   0.03,-127.61) (  -0.72,-131.03)  390.07                80
 12/19/2021   21:51:44   (   0.01,-127.56) (   0.24,-126.49)  122.58                80
 12/21/2021   10:10:50   (  -0.03,-127.49) (   0.94,-131.75)  485.35                80
 12/22/2021   09:54:45   (  -0.02,-127.45) (  -0.08,-127.21)   26.79                80
 12/24/2021   21:55:14   (   0.03,-127.33) (  -0.11,-127.97)   72.55                80
 12/25/2021   21:39:08   (   0.02,-127.28) (   0.92,-123.43)  439.46                80