Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 6 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)
 06/01/2021   17:55:17   (  -0.07,-128.46) (  -0.70,-125.67)  318.45                80
 06/03/2021   06:14:17   (   0.08,-128.45) (  -0.35,-130.26)  207.70                80
 06/04/2021   05:50:57   (   0.07,-128.45) (   0.77,-125.27)  361.99                80
 06/05/2021   18:09:49   (  -0.08,-128.49) (   0.20,-129.84)  153.21                80
 06/06/2021   17:51:48   (  -0.07,-128.50) (  -0.87,-124.83)  417.01                80
 06/08/2021   06:10:49   (   0.08,-128.48) (  -0.12,-129.44)  109.04                80
 06/09/2021   05:47:30   (   0.08,-128.48) (   1.00,-124.45)  459.94                80
 06/10/2021   18:06:20   (  -0.08,-128.50) (   0.03,-129.01)   57.27                80
 06/13/2021   06:07:21   (   0.09,-128.48) (   0.06,-128.61)   14.47                80