Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 5 31.  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)
 06/01/2021   04:47:10   (   0.05,-128.41) (  -0.11,-129.23)   92.90                80
 06/02/2021   04:23:50   (   0.05,-128.41) (   0.95,-124.24)  474.82                80
 06/03/2021   16:42:42   (  -0.06,-128.49) (   0.02,-128.85)   40.82                80
 06/06/2021   04:43:42   (   0.06,-128.45) (   0.03,-128.51)    6.82                80
 06/08/2021   16:41:55   (  -0.06,-128.52) (  -0.18,-128.15)   43.78                80
 06/10/2021   05:00:54   (   0.07,-128.48) (  -0.89,-132.78)  489.87                80
 06/11/2021   04:37:35   (   0.07,-128.47) (   0.23,-127.80)   76.69                80
 06/12/2021   16:56:26   (  -0.08,-128.52) (   0.80,-132.40)  442.95                80
 06/13/2021   16:38:26   (  -0.08,-128.52) (  -0.32,-127.43)  123.94                80