Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2020 6 4.  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)
 06/05/2020   18:08:32   (   0.14,-128.03) (   0.50,-129.78)  199.28                80
 06/06/2020   17:50:32   (   0.14,-128.00) (  -0.56,-124.78)  367.32                80
 06/08/2020   06:09:32   (  -0.13,-127.92) (  -0.46,-129.37)  166.16                80
 06/09/2020   05:46:13   (  -0.13,-127.89) (   0.67,-124.38)  399.91                80
 06/10/2020   18:05:04   (   0.12,-127.89) (   0.33,-128.94)  119.81                80
 06/11/2020   17:47:03   (   0.12,-127.86) (  -0.74,-123.94)  446.59                80
 06/13/2020   06:06:04   (  -0.11,-127.78) (  -0.27,-128.54)   86.61                80
 06/14/2020   05:42:43   (  -0.11,-127.75) (   0.80,-123.53)  479.35                80
 06/15/2020   18:01:35   (   0.10,-127.74) (   0.21,-128.10)   41.21                80
 06/18/2020   05:59:54   (  -0.10,-127.62) (  -0.14,-127.69)    8.98                80