Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 7 17.  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)
 07/17/2021   17:50:39   (  -0.13,-127.69) (  -0.76,-124.79)  330.63                80
 07/19/2021   06:09:39   (   0.11,-127.65) (  -0.27,-129.38)  196.84                80
 07/20/2021   05:46:19   (   0.12,-127.60) (   0.83,-124.38)  366.95                80
 07/21/2021   18:05:12   (  -0.11,-127.51) (   0.20,-128.94)  162.48                80
 07/22/2021   17:47:12   (  -0.12,-127.47) (  -0.89,-123.94)  401.60                80
 07/24/2021   06:06:12   (   0.11,-127.42) (  -0.14,-128.53)  126.32                80
 07/25/2021   05:42:54   (   0.12,-127.37) (   1.01,-123.54)  436.91                80
 07/26/2021   18:01:45   (  -0.11,-127.27) (   0.08,-128.09)   93.48                80
 07/27/2021   17:43:47   (  -0.12,-127.23) (  -1.07,-123.10)  470.52                80
 07/29/2021   06:02:46   (   0.11,-127.19) (  -0.01,-127.68)   56.59                80