Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 12 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)
 12/14/2021   17:44:36   (  -0.17,-127.79) (  -1.03,-123.94)  438.66                80
 12/16/2021   06:06:16   (   0.15,-127.70) (  -0.02,-128.53)   94.31                80
 12/17/2021   05:42:56   (   0.16,-127.66) (   1.11,-123.53)  470.38                80
 12/18/2021   18:04:27   (  -0.14,-127.62) (  -0.02,-128.08)   52.46                80
 12/21/2021   06:02:46   (   0.13,-127.48) (   0.10,-127.68)   22.02                80
 12/23/2021   17:58:17   (  -0.12,-127.39) (  -0.15,-127.23)   18.38                80
 12/26/2021   05:56:37   (   0.11,-127.24) (   0.22,-126.83)   47.73                80
 12/27/2021   18:18:07   (  -0.10,-127.19) (   0.85,-131.38)  476.80                80