Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 9 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 09/10/2021   18:04:45   (  -0.28,-128.15) (  -0.30,-128.16)    3.12                80
 09/13/2021   06:03:05   (   0.28,-128.16) (   0.39,-127.77)   45.60                80
 09/14/2021   18:19:14   (  -0.31,-128.09) (   0.65,-132.32)  482.62                80
 09/15/2021   18:01:13   (  -0.29,-128.07) (  -0.45,-127.32)   85.07                80
 09/17/2021   06:17:34   (   0.31,-128.08) (  -0.56,-131.92)  437.63                80
 09/18/2021   05:59:33   (   0.30,-128.06) (   0.54,-126.92)  129.75                80
 09/19/2021   18:15:44   (  -0.32,-127.98) (   0.44,-131.49)  398.87                80
 09/20/2021   17:57:43   (  -0.31,-127.96) (  -0.66,-126.49)  168.73                80
 09/22/2021   06:14:03   (   0.33,-127.98) (  -0.35,-131.09)  353.72                80