Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 1 8.  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)
 01/08/2021   15:12:50   (   0.35,-128.16) (   1.09,-131.46)  376.97                80
 01/09/2021   15:01:07   (   0.36,-128.14) (   0.46,-128.60)   51.70                80
 01/10/2021   14:52:04   (   0.36,-128.13) (  -0.18,-125.73)  273.44                80
 01/13/2021   03:10:20   (  -0.35,-128.11) (  -0.95,-130.68)  294.21                80
 01/14/2021   03:01:17   (  -0.36,-128.09) (  -0.33,-127.81)   30.84                80
 01/15/2021   02:49:34   (  -0.37,-128.07) (   0.35,-124.96)  355.66                80
 01/17/2021   15:07:47   (   0.36,-128.00) (   0.77,-129.89)  215.41                80
 01/18/2021   14:58:44   (   0.36,-127.98) (   0.13,-127.03)  109.46                80
 01/19/2021   14:47:00   (   0.37,-127.96) (  -0.51,-124.16)  434.24                80
 01/21/2021   03:17:02   (  -0.34,-127.95) (  -1.30,-131.98)  460.85                80