Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 8 16.  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)
 08/17/2021   06:09:45   (   0.01,-128.24) (  -0.21,-129.37)  128.06                80
 08/18/2021   05:46:26   (   0.04,-128.25) (   0.89,-124.38)  441.34                80
 08/19/2021   18:07:57   (  -0.00,-128.19) (   0.16,-128.93)   83.82                80
 08/20/2021   17:44:38   (  -0.03,-128.20) (  -1.00,-123.94)  485.94                80
 08/22/2021   06:06:19   (  -0.00,-128.29) (  -0.04,-128.53)   27.41                80
 08/24/2021   18:03:06   (   0.00,-128.23) (  -0.01,-128.09)   16.28                 5
 08/26/2021   06:23:31   (  -0.04,-128.33) (  -1.03,-132.68)  496.31                80
 08/27/2021   06:00:12   (  -0.01,-128.33) (   0.13,-127.70)   72.75                80
 08/28/2021   18:21:44   (   0.05,-128.26) (   0.92,-132.25)  454.21                80
 08/29/2021   17:58:24   (   0.02,-128.26) (  -0.19,-127.25)  115.00                80