Simultaneous Nadir Overpasses (SNOs) between METOP-A and TERRA
TLE Epoch: 2021 6 18.  Predictions up to the next  14.0 days:

     Date     Time(METOP-A) METOP-A Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/18/2021   19:30:18   (  81.31, -66.49) 06/18/2021   19:30:44  (  81.32, -66.34)    2.89                26
 06/18/2021   20:20:58   ( -81.30, 101.09) 06/18/2021   20:20:11  ( -81.31, 101.21)    2.76                47
 06/21/2021   15:04:39   (  81.30,   0.10) 06/21/2021   15:04:57  (  81.31,  -0.03)    2.74                18
 06/21/2021   15:55:20   ( -81.30, 167.31) 06/21/2021   15:54:25  ( -81.29, 167.17)    2.75                55
 06/24/2021   10:39:01   (  81.30,  66.29) 06/24/2021   10:39:10  (  81.30,  66.25)    0.62                 9
 06/24/2021   11:29:41   ( -81.29,-126.11) 06/24/2021   11:28:37  ( -81.30,-126.15)    1.25                64
 06/27/2021   05:22:43   ( -81.33, -35.56) 06/27/2021   05:23:57  ( -81.27, -35.53)    7.07                74
 06/27/2021   06:13:22   (  81.31, 132.46) 06/27/2021   06:13:22  (  81.29, 132.49)    1.86                 0
 06/27/2021   07:04:02   ( -81.30, -59.92) 06/27/2021   07:02:49  ( -81.29, -59.87)    0.95                73
 06/30/2021   00:57:03   ( -81.31,  31.38) 06/30/2021   00:58:08  ( -81.30,  31.45)    1.63                65