Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 10 12.  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)
 10/12/2023   22:22:19   (  71.10,-161.21) 10/12/2023   22:23:01  (  71.12,-161.25)    3.17                42
 10/12/2023   23:13:01   ( -71.01,   6.25) 10/12/2023   23:12:27  ( -71.00,   6.21)    1.61                34
 10/15/2023   10:25:31   ( -71.35,-162.43) 10/15/2023   10:26:42  ( -71.26,-161.99)   18.52                71
 10/15/2023   11:16:11   (  71.03,   5.42) 10/15/2023   11:16:06  (  71.05,   5.34)    3.15                 5
 10/15/2023   12:06:48   ( -70.68, 173.32) 10/15/2023   12:05:36  ( -70.71, 172.48)   30.96                72
 10/17/2023   23:19:20   ( -71.14,   4.45) 10/17/2023   23:19:47  ( -71.14,   4.53)    2.94                27
 10/18/2023   00:10:04   (  71.04, 171.94) 10/18/2023   00:09:09  (  71.03, 172.02)    3.29                55
 10/20/2023   11:22:29   (  71.15,   3.64) 10/20/2023   11:23:25  (  71.13,   3.58)    3.41                56
 10/20/2023   12:13:11   ( -71.05, 171.13) 10/20/2023   12:12:50  ( -71.08, 171.15)    3.01                21
 10/22/2023   23:25:48   ( -71.80,   1.72) 10/22/2023   23:26:56  ( -71.68,   3.51)   63.88                68
 10/23/2023   00:16:21   (  71.14, 170.21) 10/23/2023   00:16:26  (  71.12, 170.28)    3.21                 5
 10/23/2023   01:07:03   ( -71.03, -22.30) 10/23/2023   01:05:52  ( -71.02, -22.23)    3.08                71
 10/25/2023   12:19:27   ( -71.17, 169.37) 10/25/2023   12:20:04  ( -71.19, 169.44)    3.37                37
 10/25/2023   13:10:10   (  71.03, -23.08) 10/25/2023   13:09:26  (  71.06, -23.09)    3.50                44