Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 12 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 12/18/2021   14:41:36   (  -0.04, -75.21) (   0.42, -77.30)  238.59                80
 12/19/2021   14:18:16   (  -0.04, -75.20) (  -0.71, -72.31)  330.09                80
 12/21/2021   02:39:56   (   0.03, -75.18) (  -0.34, -76.90)  195.88                80
 12/22/2021   02:16:36   (   0.03, -75.18) (   0.78, -71.91)  373.00                80
 12/23/2021   14:35:28   (  -0.03, -75.19) (   0.23, -76.47)  144.88                80
 12/24/2021   14:17:27   (  -0.03, -75.19) (  -0.84, -71.46)  424.53                80
 12/26/2021   02:36:27   (   0.02, -75.18) (  -0.15, -76.07)  100.30                80
 12/27/2021   02:13:07   (   0.03, -75.18) (   0.92, -71.06)  469.33                80
 12/28/2021   14:31:58   (  -0.02, -75.21) (   0.09, -75.62)   47.64                80
 12/31/2021   02:32:58   (   0.02, -75.21) (  -0.01, -75.22)    3.37                80