Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 10 20.  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)
 10/20/2023   11:22:34   (  71.14,   3.65) 10/20/2023   11:23:25  (  71.16,   3.61)    2.75                51
 10/20/2023   12:13:16   ( -71.04, 171.12) 10/20/2023   12:12:51  ( -71.04, 171.08)    1.72                25
 10/22/2023   23:25:52   ( -71.34,   2.49) 10/22/2023   23:27:04  ( -71.29,   2.87)   14.56                72
 10/23/2023   00:16:33   (  71.07, 170.26) 10/23/2023   00:16:28  (  71.07, 170.19)    2.72                 5
 10/23/2023   01:07:09   ( -70.66, -21.74) 10/23/2023   01:05:58  ( -70.74, -22.66)   35.01                71
 10/25/2023   11:29:23   (  72.10,   0.28) 10/25/2023   11:30:28  (  71.98,   3.08)   96.85                65
 10/25/2023   12:19:48   ( -71.12, 169.37) 10/25/2023   12:20:08  ( -71.11, 169.31)    2.12                20
 10/25/2023   13:10:32   (  71.01, -23.14) 10/25/2023   13:09:30  (  70.99, -23.21)    3.03                62
 10/28/2023   00:23:05   (  71.16, 168.47) 10/28/2023   00:23:43  (  71.16, 168.46)    0.49                38
 10/28/2023   01:13:47   ( -71.06, -24.04) 10/28/2023   01:13:09  ( -71.06, -24.06)    0.85                38
 10/30/2023   12:26:19   ( -71.22, 167.57) 10/30/2023   12:27:21  ( -71.19, 167.55)    3.29                62
 10/30/2023   13:17:03   (  71.12, -24.95) 10/30/2023   13:16:42  (  71.12, -24.89)    2.08                21
 10/30/2023   14:07:29   ( -70.17, 143.90) 10/30/2023   14:06:22  ( -70.25, 141.47)   92.10                67
 11/02/2023   00:29:40   (  71.49, 166.27) 11/02/2023   00:30:52  (  71.37, 166.92)   26.52                72
 11/02/2023   01:20:18   ( -71.17, -25.85) 11/02/2023   01:20:20  ( -71.16, -25.77)    3.48                 2
 11/02/2023   02:10:57   (  70.81, 142.06) 11/02/2023   02:09:45  (  70.87, 141.45)   23.10                72