Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2021   04:35:44   (   0.16,-127.85) (  -0.24,-129.59)  198.60                80
 12/23/2021   16:18:58   (  -0.15,-127.94) (  -0.58,-126.07)  213.33                80
 12/24/2021   04:37:47   (   0.15,-127.94) (  -0.32,-129.95)  229.26                80
 12/26/2021   16:20:50   (  -0.14,-128.02) (  -0.51,-126.38)  187.39                80
 12/27/2021   04:39:51   (   0.14,-128.02) (  -0.37,-130.31)  260.53                80
 12/29/2021   16:22:41   (  -0.14,-128.10) (  -0.44,-126.68)  160.58                80
 12/30/2021   04:41:53   (   0.13,-128.09) (  -0.44,-130.67)  292.95                80
 01/01/2022   16:24:30   (  -0.12,-128.15) (  -0.35,-126.98)  132.28                80
 01/02/2022   04:43:55   (   0.12,-128.15) (  -0.52,-131.02)  326.88                80