Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 9 14.  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)
 09/14/2021   18:19:14   (  -0.31,-128.04) (   0.67,-132.31)  487.55                80
 09/15/2021   18:01:13   (  -0.29,-128.01) (  -0.43,-127.31)   79.34                80
 09/17/2021   06:17:33   (   0.31,-128.02) (  -0.58,-131.92)  444.53                80
 09/18/2021   05:59:33   (   0.30,-127.99) (   0.52,-126.92)  122.04                80
 09/19/2021   18:15:43   (  -0.32,-127.90) (   0.46,-131.48)  407.92                80
 09/20/2021   17:57:43   (  -0.31,-127.87) (  -0.64,-126.48)  158.85                80
 09/22/2021   06:14:03   (   0.33,-127.88) (  -0.37,-131.08)  364.77                80
 09/23/2021   05:56:03   (   0.32,-127.85) (   0.72,-126.09)  201.66                80
 09/24/2021   18:12:12   (  -0.34,-127.75) (   0.31,-130.64)  328.85                80
 09/25/2021   17:54:11   (  -0.32,-127.72) (  -0.79,-125.64)  237.40                80
 09/27/2021   06:10:32   (   0.34,-127.72) (  -0.22,-130.24)  286.87                80