Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2020 12 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)
 12/18/2020   18:06:12   (   0.22,-128.22) (   0.37,-128.89)   76.05                80
 12/19/2020   17:48:13   (   0.24,-128.23) (  -0.71,-123.89)  494.23                80
 12/21/2020   06:04:34   (  -0.22,-128.26) (  -0.29,-128.49)   26.56                80
 12/23/2020   18:05:28   (   0.21,-128.26) (   0.16,-128.06)   22.82                80
 12/25/2020   06:21:49   (  -0.19,-128.28) (  -1.17,-132.66)  499.18                80
 12/26/2020   06:03:50   (  -0.20,-128.29) (  -0.09,-127.66)   70.77                80
 12/27/2020   18:20:02   (   0.18,-128.27) (   1.08,-132.23)  450.74                80
 12/28/2020   18:02:02   (   0.20,-128.27) (  -0.01,-127.23)  118.59                80
 12/30/2020   06:18:25   (  -0.17,-128.28) (  -0.95,-131.84)  405.10                80
 12/31/2020   06:00:25   (  -0.19,-128.28) (   0.13,-126.84)  164.11                80