Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2021 6 20.  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)
 06/22/2021   07:33:17   (  81.25, 111.68) 06/22/2021   07:33:49  (  81.26, 111.78)    1.73                32
 06/22/2021   08:23:56   ( -81.27, -80.09) 06/22/2021   08:23:15  ( -81.27, -80.28)    3.19                41
 06/25/2021   03:07:40   (  81.26, 178.30) 06/25/2021   03:08:01  (  81.27, 178.43)    2.51                21
 06/25/2021   03:58:20   ( -81.27, -13.84) 06/25/2021   03:57:28  ( -81.27, -13.98)    2.33                52
 06/27/2021   22:42:04   (  81.26,-115.49) 06/27/2021   22:42:14  (  81.26,-115.33)    2.71                10
 06/27/2021   23:32:44   ( -81.27,  52.40) 06/27/2021   23:31:41  ( -81.26,  52.30)    2.02                63
 06/30/2021   17:25:48   ( -81.25, 143.33) 06/30/2021   17:27:01  ( -81.24, 143.25)    1.54                73
 06/30/2021   18:16:27   (  81.26, -48.89) 06/30/2021   18:16:26  (  81.27, -48.74)    2.71                 1
 06/30/2021   19:07:00   ( -81.30, 121.35) 06/30/2021   19:05:46  ( -81.39, 121.18)   10.11                74
 07/03/2021   13:00:10   ( -81.25,-150.07) 07/03/2021   13:01:12  ( -81.25,-150.17)    1.65                62