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)
 10/30/2021   18:15:46   (  -0.32,-128.41) (   0.34,-131.49)  349.88                80
 10/31/2021   17:57:46   (  -0.32,-128.42) (  -0.76,-126.49)  220.20                80
 11/02/2021   06:16:47   (   0.32,-128.42) (  -0.27,-131.09)  303.69                80
 11/03/2021   05:53:27   (   0.32,-128.43) (   0.83,-126.09)  265.99                80
 11/04/2021   18:12:20   (  -0.32,-128.44) (   0.17,-130.66)  251.84                80
 11/05/2021   17:54:20   (  -0.32,-128.45) (  -0.93,-125.66)  317.43                80
 11/07/2021   06:13:20   (   0.31,-128.43) (  -0.08,-130.26)  207.67                80
 11/08/2021   05:50:01   (   0.31,-128.43) (   1.02,-125.26)  361.03                80
 11/09/2021   18:08:53   (  -0.30,-128.43) (  -0.02,-129.83)  158.24                80
 11/10/2021   17:50:54   (  -0.30,-128.43) (  -1.12,-124.83)  410.36                80
 11/12/2021   06:09:53   (   0.29,-128.41) (   0.06,-129.42)  115.19                80