Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 3 15.  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)
 03/15/2021   06:16:01   (  -0.16,-128.36) (  -0.72,-131.00)  300.63                80
 03/16/2021   05:52:41   (  -0.15,-128.36) (   0.35,-126.00)  268.97                80
 03/17/2021   18:11:33   (   0.15,-128.46) (   0.62,-130.57)  240.78                80
 03/18/2021   17:50:53   (   0.15,-128.46) (  -0.52,-125.58)  328.59                80
 03/20/2021   06:12:32   (  -0.15,-128.37) (  -0.55,-130.16)  204.32                80
 03/21/2021   05:49:12   (  -0.14,-128.37) (   0.58,-125.17)  364.40                80
 03/22/2021   18:08:04   (   0.14,-128.44) (   0.45,-129.73)  146.91                80
 03/23/2021   17:50:04   (   0.14,-128.44) (  -0.69,-124.74)  421.69                80
 03/25/2021   06:09:02   (  -0.14,-128.34) (  -0.38,-129.32)  112.11                80
 03/26/2021   05:45:43   (  -0.14,-128.33) (   0.76,-124.33)  456.07                80
 03/27/2021   18:04:34   (   0.14,-128.40) (   0.26,-128.89)   56.19                80