Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 6 3.  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)
 06/03/2021   16:42:42   (  -0.06,-128.49) (   0.02,-128.85)   41.20                80
 06/06/2021   04:43:42   (   0.06,-128.45) (   0.03,-128.51)    7.48                80
 06/08/2021   16:41:55   (  -0.07,-128.51) (  -0.17,-128.15)   42.67                80
 06/10/2021   05:00:54   (   0.08,-128.47) (  -0.89,-132.77)  491.08                80
 06/11/2021   04:37:35   (   0.08,-128.46) (   0.23,-127.80)   75.33                80
 06/12/2021   16:56:27   (  -0.08,-128.50) (   0.74,-132.41)  444.62                80
 06/13/2021   16:38:26   (  -0.09,-128.50) (  -0.32,-127.43)  122.11                80
 06/15/2021   04:57:27   (   0.09,-128.45) (  -0.68,-132.07)  411.91                80
 06/16/2021   04:34:06   (   0.09,-128.44) (   0.38,-127.08)  153.90                80