Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 12 23.  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)
 12/23/2021   06:13:38   (   0.12,-127.92) (  -0.39,-130.18)  258.47                80
 12/24/2021   05:50:20   (   0.12,-127.94) (   0.75,-125.20)  313.52                80
 12/25/2021   18:11:52   (  -0.11,-128.00) (   0.27,-129.76)  200.22                80
 12/26/2021   17:48:33   (  -0.11,-128.03) (  -0.82,-124.76)  371.72                80
 12/28/2021   06:10:14   (   0.10,-128.06) (  -0.19,-129.36)  148.32                80
 12/29/2021   05:46:56   (   0.11,-128.08) (   0.96,-124.37)  423.00                80
 12/30/2021   18:08:27   (  -0.09,-128.12) (   0.10,-128.92)   92.02                80
 12/31/2021   17:45:08   (  -0.10,-128.14) (  -1.05,-123.94)  478.96                80
 01/02/2022   06:06:49   (   0.09,-128.16) (  -0.02,-128.52)   42.72                80
 01/04/2022   18:02:21   (  -0.08,-128.20) (  -0.09,-128.09)   11.98                80