Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2020 9 21.  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)
 09/22/2020   18:08:20   (   0.06,-128.32) (   0.18,-128.90)   66.52                80
 09/25/2020   06:06:40   (  -0.07,-128.40) (  -0.11,-128.50)   12.39                80
 09/27/2020   18:02:10   (   0.07,-128.38) (   0.03,-128.05)   36.23                80
 09/29/2020   06:23:50   (  -0.08,-128.44) (  -1.04,-132.65)  480.16                80
 09/30/2020   06:00:31   (  -0.07,-128.45) (   0.11,-127.67)   90.05                80
 10/01/2020   18:22:00   (   0.09,-128.42) (   0.96,-132.21)  432.59                80
 10/02/2020   17:58:40   (   0.08,-128.43) (  -0.18,-127.22)  137.57                80
 10/04/2020   06:20:21   (  -0.09,-128.49) (  -0.81,-131.82)  379.03                80
 10/05/2020   05:57:00   (  -0.08,-128.50) (   0.28,-126.82)  190.74                80