Simultaneous Nadir Overpasses (SNOs) between METOP-B and TERRA
TLE Epoch: 2021 9 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)
 09/20/2021   05:39:59   ( -81.24, -40.87) 09/20/2021   05:41:03  ( -81.24, -40.75)    2.20                64
 09/20/2021   06:30:38   (  81.26, 127.16) 09/20/2021   06:30:29  (  81.25, 127.00)    2.80                 9
 09/23/2021   01:14:20   ( -81.25,  26.03) 09/23/2021   01:15:15  ( -81.25,  25.87)    2.76                55
 09/23/2021   02:05:00   (  81.26,-166.37) 09/23/2021   02:04:41  (  81.26,-166.42)    0.78                19
 09/25/2021   20:48:42   ( -81.25,  92.15) 09/25/2021   20:49:27  ( -81.24,  92.08)    1.43                45
 09/25/2021   21:39:21   (  81.26, -99.91) 09/25/2021   21:38:52  (  81.27, -99.87)    1.01                29
 09/28/2021   16:23:04   ( -81.25, 158.64) 09/28/2021   16:23:39  ( -81.25, 158.62)    0.35                35
 09/28/2021   17:13:43   (  81.26, -33.47) 09/28/2021   17:13:04  (  81.27, -33.35)    2.32                39
 10/01/2021   11:57:26   ( -81.25,-134.90) 10/01/2021   11:57:51  ( -81.25,-134.87)    0.37                25