Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 21.  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)
 12/23/2021   16:18:58   (  -0.15,-127.94) (  -0.54,-126.06)  213.40                80
 12/24/2021   04:37:48   (   0.15,-127.94) (  -0.30,-129.95)  229.19                80
 12/26/2021   16:20:49   (  -0.14,-128.02) (  -0.47,-126.37)  187.56                80
 12/27/2021   04:39:51   (   0.14,-128.02) (  -0.35,-130.32)  260.41                80
 12/29/2021   16:22:41   (  -0.14,-128.10) (  -0.46,-126.69)  160.83                80
 12/30/2021   04:41:54   (   0.13,-128.10) (  -0.42,-130.67)  292.78                80
 01/01/2022   16:24:31   (  -0.12,-128.15) (  -0.38,-126.99)  132.55                80
 01/02/2022   04:43:55   (   0.12,-128.15) (  -0.50,-131.02)  326.64                80
 01/04/2022   16:26:20   (  -0.11,-128.20) (  -0.33,-127.29)  103.44                80