Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 4 1.  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)
 04/01/2021   16:49:00   (   0.13,-128.37) (   0.11,-128.17)   22.15                80
 04/04/2021   04:44:39   (  -0.13,-128.22) (  -0.05,-127.82)   45.29                80
 04/05/2021   17:03:31   (   0.12,-128.30) (   1.05,-132.43)  470.38                80
 04/06/2021   16:45:31   (   0.12,-128.28) (  -0.08,-127.45)   94.83                80
 04/08/2021   05:04:31   (  -0.12,-128.15) (  -0.99,-132.08)  447.26                80
 04/09/2021   04:41:10   (  -0.12,-128.13) (   0.08,-127.09)  117.90                80
 04/10/2021   17:00:01   (   0.12,-128.21) (   0.92,-131.70)  397.91                80
 04/11/2021   16:42:02   (   0.12,-128.19) (  -0.21,-126.72)  167.26                80
 04/13/2021   05:01:01   (  -0.12,-128.06) (  -0.85,-131.35)  375.16                80
 04/14/2021   04:37:41   (  -0.12,-128.04) (   0.22,-126.37)  189.48                80