Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 11 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 11/07/2021   06:13:20   (   0.31,-128.45) (  -0.12,-130.25)  205.33                80
 11/08/2021   05:50:01   (   0.31,-128.45) (   1.04,-125.27)  363.77                80
 11/09/2021   18:11:32   (  -0.30,-128.46) (   0.02,-129.82)  155.46                80
 11/10/2021   17:50:53   (  -0.30,-128.45) (  -1.09,-124.82)  413.46                80
 11/12/2021   06:09:53   (   0.29,-128.44) (   0.08,-129.42)  111.03                80
 11/13/2021   05:46:34   (   0.29,-128.44) (   1.19,-124.43)  457.81                80
 11/14/2021   18:08:05   (  -0.28,-128.45) (  -0.14,-128.98)   61.60                80
 11/17/2021   06:06:26   (   0.28,-128.43) (   0.25,-128.59)   17.32                80
 11/19/2021   18:01:58   (  -0.27,-128.42) (  -0.31,-128.14)   31.10                80