Simultaneous Nadir Overpasses (SNOs) between METOP-A and TERRA
TLE Epoch: 2021 4 20.  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)
 04/20/2021   19:00:44   ( -81.32, 121.73) 04/20/2021   19:00:47  ( -81.34, 121.77)    1.87                 3
 04/20/2021   19:51:25   (  81.32, -70.93) 04/20/2021   19:50:14  (  81.33, -70.83)    1.67                71
 04/23/2021   13:44:27   (  81.34,  20.35) 04/23/2021   13:45:34  (  81.33,  20.38)    1.04                67
 04/23/2021   14:35:07   ( -81.33,-172.06) 04/23/2021   14:35:01  ( -81.32,-172.08)    0.63                 6
 04/26/2021   09:18:48   (  81.33,  86.87) 04/26/2021   09:19:46  (  81.33,  86.83)    0.76                58
 04/26/2021   10:09:28   ( -81.32,-105.51) 04/26/2021   10:09:13  ( -81.33,-105.60)    1.75                15
 04/29/2021   04:53:10   (  81.33, 153.36) 04/29/2021   04:53:59  (  81.33, 153.23)    2.18                49
 04/29/2021   05:43:51   ( -81.33, -39.36) 04/29/2021   05:43:26  ( -81.33, -39.17)    3.21                25
 05/02/2021   00:27:33   (  81.33,-140.56) 05/02/2021   00:28:12  (  81.32,-140.41)    2.89                39