Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 3 14.  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) (  -0.75,-131.00)  300.64                80
 03/16/2021   05:52:41   (  -0.15,-128.36) (   0.38,-126.00)  268.99                80
 03/17/2021   18:11:32   (   0.15,-128.46) (   0.65,-130.56)  240.68                80
 03/18/2021   17:50:53   (   0.15,-128.46) (  -0.49,-125.57)  328.72                80
 03/20/2021   06:12:32   (  -0.15,-128.37) (  -0.52,-130.17)  204.17                80
 03/21/2021   05:49:12   (  -0.14,-128.37) (   0.55,-125.16)  364.61                80
 03/22/2021   18:08:04   (   0.14,-128.45) (   0.42,-129.74)  146.60                80
 03/23/2021   17:50:04   (   0.14,-128.44) (  -0.66,-124.73)  422.03                80
 03/25/2021   06:09:03   (  -0.14,-128.35) (  -0.35,-129.33)  111.76                80
 03/26/2021   05:45:42   (  -0.14,-128.34) (   0.73,-124.33)  456.45                80
 03/27/2021   18:04:35   (   0.14,-128.41) (   0.24,-128.90)   55.71                80