Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 7 11.  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)
 07/11/2021   18:12:03   (  -0.12,-127.90) (   0.52,-130.62)  309.90                80
 07/12/2021   17:54:05   (  -0.13,-127.87) (  -0.63,-125.63)  255.34                80
 07/14/2021   06:13:05   (   0.12,-127.84) (  -0.41,-130.22)  271.85                80
 07/15/2021   05:49:45   (   0.13,-127.79) (   0.69,-125.22)  292.51                80
 07/16/2021   18:08:38   (  -0.12,-127.71) (   0.34,-129.78)  235.85                80
 07/17/2021   17:50:39   (  -0.13,-127.68) (  -0.81,-124.80)  328.92                80
 07/19/2021   06:09:39   (   0.11,-127.64) (  -0.28,-129.38)  198.48                80
 07/20/2021   05:46:20   (   0.13,-127.59) (   0.87,-124.39)  365.08                80
 07/21/2021   18:05:11   (  -0.11,-127.49) (   0.22,-128.93)  165.27                80
 07/22/2021   17:47:13   (  -0.12,-127.44) (  -0.93,-123.95)  398.53                80
 07/24/2021   06:06:12   (   0.11,-127.40) (  -0.15,-128.53)  129.34                80