Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2021 9 12.  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)
 09/14/2021   15:21:54   (  81.25,  -5.75) 09/14/2021   15:22:04  (  81.25,  -5.82)    1.27                10
 09/14/2021   16:12:33   ( -81.27, 162.24) 09/14/2021   16:11:30  ( -81.27, 162.11)    2.24                63
 09/17/2021   10:05:39   ( -81.22,-108.02) 09/17/2021   10:06:53  ( -81.19,-107.98)    3.45                74
 09/17/2021   10:56:16   (  81.26,  60.76) 09/17/2021   10:56:16  (  81.26,  60.83)    1.45                 0
 09/17/2021   11:46:56   ( -81.26,-131.59) 09/17/2021   11:45:43  ( -81.26,-131.59)    0.20                73
 09/20/2021   05:39:59   ( -81.24, -40.72) 09/20/2021   05:41:03  ( -81.25, -40.61)    1.87                64
 09/20/2021   06:30:39   (  81.25, 126.86) 09/20/2021   06:30:29  (  81.25, 127.05)    3.31                10
 09/23/2021   01:14:21   ( -81.24,  25.42) 09/23/2021   01:15:15  ( -81.24,  25.60)    3.11                54
 09/23/2021   02:04:59   (  81.26,-166.28) 09/23/2021   02:04:40  (  81.26,-166.39)    1.83                19
 09/25/2021   20:48:42   ( -81.25,  92.31) 09/25/2021   20:49:27  ( -81.24,  92.14)    2.87                45