Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 4 20.  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)
 04/20/2021   16:53:04   (   0.10,-127.89) (   0.61,-130.25)  269.06                80
 04/21/2021   16:35:05   (   0.10,-127.85) (  -0.49,-125.27)  294.04                80
 04/23/2021   04:54:05   (  -0.09,-127.69) (  -0.56,-129.91)  251.44                80
 04/24/2021   04:30:44   (  -0.10,-127.65) (   0.48,-124.92)  311.28                80
 04/25/2021   16:49:37   (   0.09,-127.69) (   0.49,-129.53)  208.91                80
 04/26/2021   16:31:36   (   0.09,-127.65) (  -0.56,-124.54)  353.71                80
 04/28/2021   04:50:36   (  -0.09,-127.49) (  -0.48,-129.17)  192.60                80
 04/29/2021   04:27:17   (  -0.09,-127.44) (   0.62,-124.20)  369.23                80
 04/30/2021   16:46:09   (   0.08,-127.46) (   0.35,-128.81)  152.74                80
 05/01/2021   16:28:09   (   0.08,-127.42) (  -0.70,-123.82)  409.01                80
 05/03/2021   04:47:09   (  -0.07,-127.25) (  -0.33,-128.46)  137.91                80