Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2022 12 13.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/13/2022   06:12:10   ( -70.23, -96.74) 12/13/2022   06:12:43  ( -70.23, -96.79)    1.63                33
 12/13/2022   07:02:54   (  70.11,  70.74) 12/13/2022   07:02:06  (  70.14,  70.75)    3.45                48
 12/15/2022   22:23:05   ( -70.73,  19.77) 12/15/2022   22:24:15  ( -70.61,  20.83)   41.08                70
 12/15/2022   23:13:41   (  70.21,-172.09) 12/15/2022   23:13:44  (  70.20,-172.11)    1.43                 3
 12/16/2022   00:04:13   ( -70.09,  -4.55) 12/16/2022   00:03:10  ( -70.10,  -4.60)    2.13                63
 12/18/2022   15:24:28   (  70.27, -54.87) 12/18/2022   15:25:22  (  70.28, -54.93)    2.82                54
 12/18/2022   16:15:01   ( -70.18, 112.62) 12/18/2022   16:14:48  ( -70.18, 112.58)    1.36                13
 12/18/2022   17:05:31   (  69.35, -78.85) 12/18/2022   17:04:23  (  69.43, -80.78)   76.32                68
 12/21/2022   08:25:49   ( -70.29,-130.24) 12/21/2022   08:26:25  ( -70.30,-130.19)    2.05                36
 12/21/2022   09:16:32   (  70.17,  37.25) 12/21/2022   09:15:49  (  70.16,  37.28)    1.95                43
 12/24/2022   00:36:46   ( -70.88, -13.88) 12/24/2022   00:37:55  ( -70.77, -12.42)   54.72                69
 12/24/2022   01:27:19   (  70.27, 154.42) 12/24/2022   01:27:26  (  70.25, 154.48)    2.90                 7
 12/24/2022   02:17:52   ( -70.14, -38.03) 12/24/2022   02:16:52  ( -70.15, -38.02)    1.18                60
 12/26/2022   17:38:04   (  70.33, -88.36) 12/26/2022   17:39:02  (  70.33, -88.35)    0.65                58
 12/26/2022   18:28:38   ( -70.22,  79.15) 12/26/2022   18:28:28  ( -70.22,  79.15)    0.38                10
 12/26/2022   19:19:10   (  69.58,-112.56) 12/26/2022   19:18:00  (  69.64,-113.99)   55.72                70