Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 11 3.  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)
 11/03/2021   05:53:28   (   0.32,-128.43) (   0.86,-126.10)  266.86                80
 11/04/2021   18:14:59   (  -0.32,-128.45) (   0.20,-130.65)  250.93                80
 11/05/2021   17:54:21   (  -0.32,-128.46) (  -0.97,-125.67)  318.60                80
 11/07/2021   06:13:20   (   0.31,-128.45) (  -0.11,-130.25)  205.85                80
 11/08/2021   05:50:00   (   0.31,-128.45) (   1.00,-125.26)  363.11                80
 11/09/2021   18:11:33   (  -0.30,-128.45) (  -0.00,-129.82)  156.03                80
 11/10/2021   17:50:53   (  -0.30,-128.45) (  -1.11,-124.83)  412.78                80
 11/12/2021   06:09:53   (   0.29,-128.43) (   0.05,-129.41)  112.14                80
 11/13/2021   05:46:33   (   0.29,-128.43) (   1.16,-124.42)  456.61                80
 11/14/2021   18:08:05   (  -0.28,-128.43) (  -0.16,-128.98)   62.66                80