Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 12 18.  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)
 12/19/2018   06:17:32   (   0.14,-128.63) (  -0.59,-131.89)  371.57                80
 12/20/2018   05:54:14   (   0.15,-128.62) (   0.52,-126.89)  196.47                80
 12/21/2018   18:13:06   (  -0.14,-128.60) (   0.53,-131.45)  325.26                80
 12/22/2018   17:55:08   (  -0.14,-128.60) (  -0.59,-126.45)  243.36                80
 12/24/2018   06:14:10   (   0.12,-128.60) (  -0.42,-131.05)  279.27                80
 12/25/2018   05:50:52   (   0.13,-128.59) (   0.69,-126.06)  287.94                80
 12/26/2018   18:09:44   (  -0.11,-128.55) (   0.35,-130.62)  235.76                80
 12/27/2018   17:51:45   (  -0.12,-128.54) (  -0.77,-125.62)  332.33                80
 12/29/2018   06:10:48   (   0.10,-128.55) (  -0.24,-130.22)  189.87                80
 12/30/2018   05:47:29   (   0.11,-128.53) (   0.88,-125.23)  377.11                80
 12/31/2018   18:06:21   (  -0.10,-128.48) (   0.16,-129.78)  148.02                80
 01/01/2019   17:48:23   (  -0.11,-128.47) (  -0.95,-124.79)  419.72                80