Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 10 29.  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)
 10/29/2021   05:59:34   (   0.33,-128.38) (   0.68,-126.93)  166.91                80
 10/30/2021   18:15:45   (  -0.32,-128.41) (   0.38,-131.48)  350.01                80
 10/31/2021   17:57:47   (  -0.32,-128.42) (  -0.78,-126.50)  220.04                80
 11/02/2021   06:16:47   (   0.32,-128.42) (  -0.25,-131.09)  303.97                80
 11/03/2021   05:53:28   (   0.32,-128.42) (   0.85,-126.09)  265.67                80
 11/04/2021   18:12:20   (  -0.32,-128.44) (   0.15,-130.66)  252.27                80
 11/05/2021   17:54:20   (  -0.32,-128.44) (  -0.95,-125.66)  316.96                80
 11/07/2021   06:13:20   (   0.31,-128.43) (  -0.13,-130.25)  208.24                80
 11/08/2021   05:50:01   (   0.31,-128.42) (   1.04,-125.26)  360.43                80
 11/09/2021   18:11:33   (  -0.30,-128.42) (   0.03,-129.82)  158.93                80
 11/10/2021   17:50:53   (  -0.30,-128.42) (  -1.08,-124.82)  409.58                80