Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 6.  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)
 01/07/2023   22:36:55   (  70.61,-163.56) 01/07/2023   22:38:06  (  70.53,-162.94)   24.45                71
 01/07/2023   23:27:32   ( -70.26,   4.31) 01/07/2023   23:27:35  ( -70.24,   4.28)    2.39                 3
 01/08/2023   00:18:13   (  69.98, 172.04) 01/08/2023   00:17:00  (  70.07, 171.71)   16.21                73
 01/10/2023   11:30:56   (  70.93,   2.43) 01/10/2023   11:32:05  (  70.83,   3.97)   57.07                69
 01/10/2023   12:21:27   ( -70.26, 170.82) 01/10/2023   12:21:39  ( -70.26, 170.78)    1.58                12
 01/10/2023   13:12:11   (  70.15, -21.69) 01/10/2023   13:11:03  (  70.15, -21.73)    1.22                68
 01/13/2023   00:24:57   (  71.25, 168.39) 01/13/2023   00:26:03  (  71.16, 170.93)   91.76                66
 01/13/2023   01:15:22   ( -70.27, -22.68) 01/13/2023   01:15:43  ( -70.26, -22.76)    3.05                21
 01/13/2023   02:06:06   (  70.16, 144.80) 01/13/2023   02:05:07  (  70.14, 144.73)    3.06                59
 01/15/2023   14:09:17   ( -70.29, 143.81) 01/15/2023   14:09:46  ( -70.29, 143.75)    2.25                29
 01/15/2023   15:00:01   (  70.18, -48.71) 01/15/2023   14:59:10  (  70.17, -48.76)    1.86                51
 01/18/2023   03:03:11   ( -70.31, -49.71) 01/18/2023   03:03:48  ( -70.30, -49.77)    2.14                37
 01/18/2023   03:53:55   (  70.20, 117.76) 01/18/2023   03:53:12  (  70.18, 117.71)    3.38                43