Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 12 1.  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)
 12/01/2021   03:47:16   (   0.24,-128.18) (   0.53,-126.90)  145.56                80
 12/02/2021   03:35:30   (   0.23,-128.15) (   1.21,-124.03)  471.42                80
 12/03/2021   16:05:15   (  -0.23,-128.14) (   0.63,-131.78)  416.49                80
 12/04/2021   15:53:29   (  -0.23,-128.11) (  -0.04,-128.91)   91.30                80
 12/05/2021   15:44:22   (  -0.22,-128.08) (  -0.71,-126.04)  233.72                80
 12/08/2021   04:02:32   (   0.22,-127.97) (  -0.46,-130.96)  340.47                80
 12/09/2021   03:50:45   (   0.21,-127.94) (   0.18,-128.08)   15.46                80
 12/10/2021   03:41:37   (   0.21,-127.91) (   0.81,-125.19)  309.55                80
 12/12/2021   16:02:18   (  -0.20,-127.86) (   0.34,-130.08)  255.16                80
 12/13/2021   15:50:31   (  -0.20,-127.82) (  -0.34,-127.21)   69.61                80
 12/14/2021   15:38:45   (  -0.20,-127.79) (  -1.02,-124.34)  394.24                80