Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 12 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/18/2021   03:45:05   (   0.18,-127.75) (   0.50,-126.38)  156.38                80
 12/19/2021   03:33:19   (   0.18,-127.78) (   1.19,-123.51)  488.44                80
 12/20/2021   16:08:28   (  -0.17,-127.85) (   0.65,-131.28)  392.43                80
 12/21/2021   15:56:42   (  -0.16,-127.88) (  -0.03,-128.41)   60.75                80
 12/22/2021   15:42:15   (  -0.16,-127.91) (  -0.72,-125.54)  270.83                80
 12/25/2021   04:05:41   (   0.15,-127.97) (  -0.41,-130.46)  283.51                80
 12/26/2021   03:51:14   (   0.15,-127.99) (   0.24,-127.57)   47.82                80
 12/27/2021   03:39:27   (   0.15,-128.02) (   0.94,-124.71)  379.03                80
 12/29/2021   16:02:51   (  -0.14,-128.09) (   0.24,-129.61)  173.32                80
 12/30/2021   15:48:24   (  -0.14,-128.11) (  -0.46,-126.74)  157.24                80
 12/31/2021   15:36:38   (  -0.14,-128.13) (  -1.15,-123.87)  487.57                80