Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2020 9 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 09/18/2020   17:48:30   (   0.03,-128.25) (  -0.76,-124.74)  399.27                80
 09/20/2020   06:10:10   (  -0.05,-128.32) (  -0.27,-129.34)  116.27                80
 09/21/2020   05:46:51   (  -0.04,-128.34) (   0.88,-124.35)  454.69                80
 09/22/2020   18:08:20   (   0.05,-128.32) (   0.18,-128.90)   66.33                80
 09/25/2020   06:06:40   (  -0.06,-128.40) (  -0.11,-128.50)   12.07                80
 09/27/2020   18:02:10   (   0.07,-128.38) (   0.02,-128.06)   36.73                80
 09/29/2020   06:23:50   (  -0.08,-128.45) (  -1.03,-132.66)  479.64                80
 09/30/2020   06:00:31   (  -0.07,-128.46) (   0.12,-127.67)   90.67                80
 10/01/2020   18:22:00   (   0.08,-128.43) (   0.95,-132.21)  431.72                80