Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 7 9.  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)
 07/09/2021   06:16:31   (   0.11,-128.01) (  -0.56,-131.06)  347.65                80
 07/10/2021   05:53:11   (   0.13,-127.97) (   0.53,-126.06)  217.11                80
 07/11/2021   18:12:03   (  -0.12,-127.90) (   0.50,-130.62)  310.15                80
 07/12/2021   17:54:05   (  -0.13,-127.87) (  -0.65,-125.64)  255.02                80
 07/14/2021   06:13:05   (   0.12,-127.83) (  -0.38,-130.23)  272.26                80
 07/15/2021   05:49:46   (   0.14,-127.79) (   0.71,-125.23)  292.05                80
 07/16/2021   18:08:38   (  -0.12,-127.71) (   0.32,-129.79)  236.45                80
 07/17/2021   17:50:39   (  -0.13,-127.67) (  -0.77,-124.79)  328.25                80
 07/19/2021   06:09:39   (   0.12,-127.63) (  -0.26,-129.38)  199.19                80
 07/20/2021   05:46:19   (   0.13,-127.58) (   0.83,-124.38)  364.31                80
 07/21/2021   18:05:12   (  -0.11,-127.48) (   0.20,-128.94)  166.19                80
 07/22/2021   17:47:12   (  -0.13,-127.43) (  -0.89,-123.94)  397.55                80