Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 10 4.  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)
 10/04/2021   06:14:01   (   0.35,-127.80) (  -0.36,-131.05)  369.16                80
 10/05/2021   05:56:01   (   0.34,-127.84) (   0.75,-126.05)  204.18                80
 10/06/2021   18:12:13   (  -0.35,-127.89) (   0.25,-130.61)  309.98                80
 10/07/2021   17:54:13   (  -0.34,-127.93) (  -0.86,-125.62)  263.12                80
 10/09/2021   06:10:33   (   0.35,-127.97) (  -0.17,-130.21)  255.54                80
 10/10/2021   05:52:34   (   0.34,-128.00) (   0.95,-125.22)  316.94                80
 10/11/2021   18:08:45   (  -0.35,-128.04) (   0.05,-129.78)  198.74                80
 10/12/2021   17:50:46   (  -0.34,-128.06) (  -1.06,-124.78)  373.43                80
 10/14/2021   06:07:06   (   0.35,-128.10) (   0.04,-129.38)  146.13                80
 10/15/2021   05:49:07   (   0.34,-128.12) (   1.17,-124.38)  425.78                80
 10/16/2021   18:05:18   (  -0.35,-128.15) (  -0.15,-128.94)   90.43                80
 10/17/2021   17:47:19   (  -0.34,-128.18) (  -1.28,-123.95)  481.57                80