Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 1 19.  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)
 01/19/2021   06:04:44   (  -0.11,-127.95) (  -0.21,-128.51)   63.44                80
 01/21/2021   18:02:55   (   0.09,-127.91) (   0.12,-128.07)   18.48                80
 01/24/2021   06:03:57   (  -0.07,-127.81) (  -0.07,-127.67)   15.93                80
 01/26/2021   18:02:10   (   0.06,-127.75) (  -0.08,-127.24)   59.04                80
 01/28/2021   06:18:31   (  -0.02,-127.67) (  -0.95,-131.84)  474.93                80
 01/29/2021   06:00:32   (  -0.05,-127.64) (   0.15,-126.84)   91.07                80
 01/30/2021   18:16:43   (   0.01,-127.61) (   0.86,-131.40)  432.29                80
 01/31/2021   17:58:44   (   0.04,-127.57) (  -0.23,-126.40)  133.22                80