Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 5 11.  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)
 05/12/2021   06:16:00   (  -0.01,-128.03) (  -0.66,-131.03)  340.77                80
 05/13/2021   05:52:42   (  -0.01,-128.06) (   0.45,-126.03)  230.97                80
 05/14/2021   18:11:34   (   0.01,-128.14) (   0.58,-130.59)  280.10                80
 05/15/2021   17:53:37   (   0.01,-128.17) (  -0.59,-125.61)  291.93                80
 05/17/2021   06:12:39   (   0.00,-128.17) (  -0.43,-130.21)  232.68                80
 05/18/2021   05:49:21   (  -0.00,-128.18) (   0.69,-125.22)  338.29                80
 05/19/2021   18:08:13   (  -0.01,-128.25) (   0.35,-129.78)  174.48                80
 05/20/2021   17:50:14   (  -0.00,-128.27) (  -0.77,-124.79)  397.02                80
 05/22/2021   06:09:17   (   0.01,-128.27) (  -0.24,-129.39)  127.45                80
 05/23/2021   05:45:58   (  -0.00,-128.28) (   0.87,-124.40)  443.08                80
 05/24/2021   18:04:51   (  -0.00,-128.34) (   0.16,-128.96)   71.20                80