Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2021 9 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)
 09/20/2021   05:39:59   ( -81.24, -40.74) 09/20/2021   05:41:03  ( -81.25, -40.61)    2.25                64
 09/20/2021   06:30:38   (  81.26, 127.28) 09/20/2021   06:30:29  (  81.26, 127.11)    2.78                 9
 09/23/2021   01:14:20   ( -81.25,  25.79) 09/23/2021   01:15:15  ( -81.24,  25.63)    2.74                55
 09/23/2021   02:04:59   (  81.26,-166.25) 09/23/2021   02:04:40  (  81.27,-166.30)    1.02                19
 09/25/2021   20:48:42   ( -81.25,  92.29) 09/25/2021   20:49:27  ( -81.25,  92.21)    1.42                45
 09/25/2021   21:39:22   (  81.25,-100.18) 09/25/2021   21:38:53  (  81.25,-100.13)    0.98                29
 09/28/2021   16:23:04   ( -81.25, 158.78) 09/28/2021   16:23:39  ( -81.25, 158.75)    0.66                35
 09/28/2021   17:13:44   (  81.25, -33.73) 09/28/2021   17:13:05  (  81.25, -33.61)    2.02                39
 10/01/2021   11:57:25   ( -81.25,-134.74) 10/01/2021   11:57:50  ( -81.26,-134.75)    0.63                25