Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2020 12 21.  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)
 12/22/2020   15:13:49   (   0.33,-128.24) (   1.15,-131.71)  396.84                80
 12/23/2020   15:02:07   (   0.33,-128.24) (   0.48,-128.85)   69.73                80
 12/24/2020   14:47:44   (   0.33,-128.25) (  -0.20,-126.00)  257.30                80
 12/27/2020   03:08:39   (  -0.33,-128.28) (  -0.92,-130.94)  303.05                80
 12/28/2020   02:59:36   (  -0.34,-128.28) (  -0.31,-128.07)   23.55                80
 12/29/2020   02:47:53   (  -0.34,-128.28) (   0.37,-125.21)  349.88                80
 12/31/2020   15:06:09   (   0.35,-128.23) (   0.80,-130.16)  220.30                80
 01/01/2021   14:57:07   (   0.35,-128.22) (   0.11,-127.30)  105.62                80
 01/02/2021   14:45:23   (   0.36,-128.21) (  -0.51,-124.43)  431.36                80
 01/04/2021   03:15:22   (  -0.35,-128.23) (  -1.27,-132.24)  458.44                80