Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 1 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)
 01/01/2021   14:57:06   (   0.35,-128.23) (   0.13,-127.30)  106.17                80
 01/02/2021   14:45:23   (   0.36,-128.22) (  -0.49,-124.43)  432.06                80
 01/04/2021   03:15:21   (  -0.35,-128.22) (  -1.29,-132.24)  458.65                80
 01/05/2021   03:03:38   (  -0.36,-128.21) (  -0.61,-129.38)  133.01                80
 01/06/2021   02:54:35   (  -0.36,-128.20) (   0.01,-126.51)  192.53                80
 01/08/2021   15:12:50   (   0.35,-128.15) (   1.13,-131.46)  377.97                80
 01/09/2021   15:01:07   (   0.36,-128.13) (   0.44,-128.60)   53.04                80
 01/10/2021   14:52:04   (   0.36,-128.11) (  -0.20,-125.73)  271.90                80
 01/13/2021   03:10:20   (  -0.35,-128.08) (  -0.99,-130.67)  297.25                80
 01/14/2021   03:01:17   (  -0.36,-128.06) (  -0.31,-127.82)   27.37                80