Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 10 1.  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)
 10/02/2021   06:07:05   (   0.34,-127.73) (  -0.01,-129.41)  191.54                80
 10/03/2021   05:49:06   (   0.33,-127.76) (   1.06,-124.41)  381.64                80
 10/04/2021   18:05:18   (  -0.34,-127.82) (  -0.08,-128.97)  132.27                80
 10/05/2021   17:47:20   (  -0.33,-127.85) (  -1.20,-123.98)  440.74                80
 10/07/2021   06:03:42   (   0.35,-127.90) (   0.18,-128.58)   78.23                80
 10/08/2021   05:45:44   (   0.34,-127.93) (   1.31,-123.59)  494.30                80
 10/09/2021   18:01:56   (  -0.35,-127.97) (  -0.32,-128.16)   20.92                80
 10/12/2021   06:02:59   (   0.35,-128.03) (   0.39,-127.76)   31.27                80
 10/13/2021   18:19:11   (  -0.35,-128.06) (   0.61,-132.32)  485.25                80
 10/14/2021   18:01:12   (  -0.34,-128.08) (  -0.52,-127.33)   86.41                80