Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 5 15.  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)
 05/15/2021   17:53:36   (  -0.00,-128.17) (  -0.55,-125.60)  291.77                80
 05/17/2021   06:12:39   (   0.01,-128.17) (  -0.46,-130.20)  232.74                80
 05/18/2021   05:49:20   (   0.01,-128.18) (   0.65,-125.21)  338.21                80
 05/19/2021   18:08:13   (  -0.02,-128.25) (   0.32,-129.78)  174.64                80
 05/20/2021   17:50:15   (  -0.01,-128.27) (  -0.79,-124.79)  396.87                80
 05/22/2021   06:09:17   (   0.02,-128.27) (  -0.22,-129.39)  127.53                80
 05/23/2021   05:45:59   (   0.01,-128.29) (   0.90,-124.40)  443.01                80
 05/24/2021   18:04:51   (  -0.02,-128.34) (   0.13,-128.96)   71.31                80
 05/25/2021   17:46:53   (  -0.01,-128.35) (  -0.98,-123.97)  499.49                80
 05/27/2021   06:05:55   (   0.02,-128.35) (  -0.03,-128.57)   25.53                80