Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2021 12 18.  Predictions up to the next  14.0 days:

     Date     Time(METOP-B) METOP-B Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2021   04:37:01   ( -81.25, -25.46) 12/19/2021   04:37:17  ( -81.24, -25.49)    0.91                16
 12/19/2021   05:27:40   (  81.27, 142.69) 12/19/2021   05:26:42  (  81.27, 142.64)    1.01                58
 12/22/2021   00:11:21   ( -81.25,  41.13) 12/22/2021   00:11:27  ( -81.25,  41.16)    0.42                 6
 12/22/2021   01:02:01   (  81.26,-151.12) 12/22/2021   01:00:53  (  81.26,-151.12)    0.29                68
 12/24/2021   18:55:03   (  81.24, -60.23) 12/24/2021   18:56:12  (  81.25, -60.20)    0.50                69
 12/24/2021   19:45:42   ( -81.26, 107.70) 12/24/2021   19:45:38  ( -81.26, 107.75)    1.16                 4
 12/27/2021   14:29:24   (  81.25,   6.29) 12/27/2021   14:30:23  (  81.25,   6.31)    0.59                59
 12/27/2021   15:20:04   ( -81.25, 173.85) 12/27/2021   15:19:50  ( -81.25, 173.91)    1.10                14
 12/30/2021   10:03:44   (  81.25,  72.78) 12/30/2021   10:04:33  (  81.25,  72.77)    0.45                49