Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 1 1.  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)
 01/01/2021   18:16:37   (   0.17,-128.24) (   0.86,-131.40)  359.98                80
 01/02/2021   17:58:38   (   0.19,-128.23) (  -0.23,-126.40)  208.65                80
 01/04/2021   06:14:59   (  -0.17,-128.21) (  -0.81,-131.00)  318.32                80
 01/05/2021   05:57:00   (  -0.19,-128.20) (   0.28,-126.00)  250.31                80
 01/06/2021   18:13:12   (   0.16,-128.19) (   0.68,-130.57)  270.85                80
 01/07/2021   17:55:12   (   0.18,-128.17) (  -0.41,-125.57)  297.19                80
 01/09/2021   06:11:34   (  -0.14,-128.14) (  -0.62,-130.16)  231.31                80
 01/10/2021   05:53:34   (  -0.16,-128.12) (   0.47,-125.17)  336.57                80
 01/11/2021   18:09:47   (   0.13,-128.11) (   0.48,-129.74)  185.56                80
 01/12/2021   17:51:47   (   0.16,-128.08) (  -0.61,-124.74)  381.86                80
 01/14/2021   06:08:08   (  -0.13,-128.04) (  -0.43,-129.33)  147.68                80