Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 10 5.  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)
 10/05/2021   05:56:02   (   0.34,-127.84) (   0.76,-126.05)  204.28                80
 10/06/2021   18:12:13   (  -0.35,-127.89) (   0.24,-130.61)  309.86                80
 10/07/2021   17:54:13   (  -0.34,-127.93) (  -0.88,-125.62)  263.31                80
 10/09/2021   06:10:34   (   0.35,-127.98) (  -0.16,-130.21)  255.21                80
 10/10/2021   05:52:34   (   0.34,-128.00) (   0.96,-125.22)  317.32                80
 10/11/2021   18:08:46   (  -0.35,-128.04) (   0.04,-129.78)  198.31                80
 10/12/2021   17:50:46   (  -0.34,-128.07) (  -1.07,-124.79)  373.90                80
 10/14/2021   06:07:06   (   0.35,-128.11) (   0.05,-129.38)  145.52                80
 10/15/2021   05:49:07   (   0.34,-128.13) (   1.17,-124.39)  426.43                80
 10/16/2021   18:05:18   (  -0.35,-128.16) (  -0.16,-128.95)   89.72                80
 10/17/2021   17:47:19   (  -0.34,-128.19) (  -1.28,-123.95)  482.32                80