Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 12 25.  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)
 12/26/2021   16:20:49   (  -0.14,-128.03) (  -0.48,-126.37)  188.10                80
 12/27/2021   04:39:51   (   0.14,-128.03) (  -0.34,-130.32)  259.64                80
 12/29/2021   16:22:40   (  -0.14,-128.11) (  -0.43,-126.68)  162.03                80
 12/30/2021   04:41:52   (   0.13,-128.11) (  -0.45,-130.66)  291.37                80
 01/01/2022   16:24:29   (  -0.12,-128.17) (  -0.36,-126.98)  134.48                80
 01/02/2022   04:43:54   (   0.12,-128.16) (  -0.51,-131.01)  324.57                80
 01/04/2022   16:26:18   (  -0.11,-128.22) (  -0.29,-127.28)  106.09                80
 01/05/2022   04:45:54   (   0.10,-128.21) (  -0.62,-131.35)  358.22                80
 01/07/2022   16:28:07   (  -0.10,-128.26) (  -0.25,-127.58)   77.85                80
 01/08/2022   04:47:53   (   0.09,-128.26) (  -0.65,-131.70)  391.27                80