Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2022 12 18.  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)
 12/18/2022   15:24:29   (  70.29, -54.91) 12/18/2022   15:25:22  (  70.30, -54.90)    0.52                53
 12/18/2022   16:15:02   ( -70.21, 112.57) 12/18/2022   16:14:48  ( -70.19, 112.59)    2.45                14
 12/18/2022   17:05:32   (  69.38, -78.89) 12/18/2022   17:04:24  (  69.39, -80.83)   76.34                68
 12/21/2022   08:25:48   ( -70.27,-130.20) 12/21/2022   08:26:25  ( -70.24,-130.26)    3.36                37
 12/21/2022   09:16:31   (  70.15,  37.29) 12/21/2022   09:15:48  (  70.17,  37.29)    1.99                43
 12/24/2022   00:36:45   ( -70.86, -13.84) 12/24/2022   00:37:55  ( -70.71, -12.51)   51.28                70
 12/24/2022   01:27:18   (  70.25, 154.46) 12/24/2022   01:27:25  (  70.25, 154.48)    1.41                 7
 12/24/2022   02:17:52   ( -70.17, -38.07) 12/24/2022   02:16:51  ( -70.15, -38.03)    3.06                61
 12/26/2022   17:38:04   (  70.31, -88.32) 12/26/2022   17:39:02  (  70.32, -88.36)    2.08                58
 12/26/2022   18:28:38   ( -70.20,  79.19) 12/26/2022   18:28:28  ( -70.21,  79.14)    2.44                10
 12/26/2022   19:19:10   (  69.55,-112.53) 12/26/2022   19:18:01  (  69.58,-114.07)   60.10                69
 12/29/2022   10:39:25   ( -70.30,-163.64) 12/29/2022   10:40:04  ( -70.31,-163.65)    0.93                39
 12/29/2022   11:30:06   (  70.16,   3.88) 12/29/2022   11:29:28  (  70.18,   3.82)    2.65                38