Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 6 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 06/06/2021   04:43:42   (   0.07,-128.45) (   0.04,-128.51)    7.23                80
 06/08/2021   16:41:54   (  -0.07,-128.51) (  -0.13,-128.14)   42.02                80
 06/10/2021   05:00:54   (   0.08,-128.46) (  -0.87,-132.78)  491.63                80
 06/11/2021   04:37:35   (   0.08,-128.45) (   0.25,-127.80)   74.74                80
 06/12/2021   16:56:26   (  -0.09,-128.49) (   0.78,-132.40)  445.58                80
 06/13/2021   16:38:27   (  -0.09,-128.49) (  -0.34,-127.43)  121.05                80
 06/15/2021   04:57:26   (   0.10,-128.44) (  -0.72,-132.06)  412.96                80
 06/16/2021   04:34:07   (   0.10,-128.43) (   0.40,-127.09)  152.76                80
 06/17/2021   16:52:58   (  -0.10,-128.45) (   0.63,-131.69)  368.96                80
 06/18/2021   16:34:58   (  -0.10,-128.45) (  -0.49,-126.72)  197.29                80