Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2022 12 15.  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)
 12/15/2022   22:23:04   ( -70.68,  19.85) 12/15/2022   22:24:15  ( -70.60,  20.81)   36.46                71
 12/15/2022   23:13:41   (  70.21,-172.09) 12/15/2022   23:13:44  (  70.19,-172.12)    2.32                 3
 12/16/2022   00:04:13   ( -70.09,  -4.55) 12/16/2022   00:03:10  ( -70.09,  -4.62)    2.36                63
 12/18/2022   15:24:28   (  70.27, -54.87) 12/18/2022   15:25:22  (  70.27, -54.94)    2.61                54
 12/18/2022   16:15:01   ( -70.19, 112.61) 12/18/2022   16:14:48  ( -70.17, 112.56)    2.73                13
 12/18/2022   17:05:31   (  69.35, -78.85) 12/18/2022   17:04:23  (  69.42, -80.79)   76.57                68
 12/21/2022   08:25:49   ( -70.29,-130.24) 12/21/2022   08:26:25  ( -70.28,-130.21)    1.83                36
 12/21/2022   09:16:32   (  70.18,  37.25) 12/21/2022   09:15:49  (  70.15,  37.26)    3.47                43
 12/24/2022   00:36:46   ( -70.88, -13.88) 12/24/2022   00:37:55  ( -70.75, -12.45)   54.44                69
 12/24/2022   01:27:18   (  70.22, 154.50) 12/24/2022   01:27:26  (  70.24, 154.46)    2.54                 8
 12/24/2022   02:17:52   ( -70.14, -38.03) 12/24/2022   02:16:52  ( -70.13, -38.05)    1.42                60
 12/26/2022   17:38:04   (  70.33, -88.36) 12/26/2022   17:39:02  (  70.31, -88.37)    2.89                58
 12/26/2022   18:28:38   ( -70.23,  79.15) 12/26/2022   18:28:28  ( -70.20,  79.12)    3.33                10
 12/26/2022   19:19:10   (  69.58,-112.57) 12/26/2022   19:18:00  (  69.62,-114.01)   56.38                70
 12/29/2022   10:39:25   ( -70.32,-163.69) 12/29/2022   10:40:04  ( -70.30,-163.66)    3.00                39
 12/29/2022   11:30:06   (  70.19,   3.84) 12/29/2022   11:29:28  (  70.17,   3.81)    2.91                38