Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 7 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 07/24/2021   06:06:13   (   0.10,-127.65) (  -0.12,-128.53)  101.03                80
 07/25/2021   05:42:54   (   0.12,-127.68) (   1.04,-123.55)  470.90                80
 07/26/2021   18:01:47   (  -0.10,-127.69) (  -0.01,-128.11)   47.86                80
 07/29/2021   06:00:09   (   0.10,-127.83) (   0.14,-127.72)   13.52                80
 07/31/2021   18:01:01   (  -0.09,-127.86) (  -0.21,-127.28)   65.76                80
 08/02/2021   06:20:02   (   0.07,-127.97) (  -0.81,-131.87)  444.81                80
 08/03/2021   05:56:43   (   0.09,-127.99) (   0.34,-126.89)  126.53                80
 08/04/2021   18:18:14   (  -0.06,-127.97) (   0.74,-131.43)  395.64                80
 08/05/2021   17:54:56   (  -0.08,-128.00) (  -0.42,-126.45)  176.14                80