Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 9 7.  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)
 09/07/2023   15:43:01   ( -71.95, 117.19) 09/07/2023   15:44:07  ( -71.84, 120.01)   98.23                66
 09/07/2023   16:33:28   (  70.95, -73.73) 09/07/2023   16:33:45  (  70.94, -73.78)    2.20                17
 09/07/2023   17:24:10   ( -70.87,  93.72) 09/07/2023   17:23:09  ( -70.87,  93.78)    1.91                61
 09/10/2023   04:36:39   ( -71.01, -74.62) 09/10/2023   04:37:36  ( -71.04, -74.62)    3.69                57
 09/10/2023   05:27:23   (  70.89,  92.89) 09/10/2023   05:27:00  (  70.89,  92.82)    2.91                23
 09/12/2023   16:40:08   (  71.87, -76.94) 09/12/2023   16:41:14  (  71.74, -74.49)   86.24                66
 09/12/2023   17:30:35   ( -71.00,  91.91) 09/12/2023   17:30:51  ( -70.98,  91.94)    3.07                16
 09/12/2023   18:21:19   (  70.88,-100.59) 09/12/2023   18:20:14  (  70.88,-100.55)    1.57                65
 09/15/2023   05:33:48   (  71.04,  91.04) 09/15/2023   05:34:40  (  71.04,  91.05)    0.42                52
 09/15/2023   06:24:30   ( -70.95,-101.49) 09/15/2023   06:24:05  ( -70.94,-101.45)    1.87                25
 09/17/2023   17:37:12   ( -71.78,  88.95) 09/17/2023   17:38:20  ( -71.68,  91.08)   75.33                68
 09/17/2023   18:27:43   (  70.99,-102.37) 09/17/2023   18:27:54  (  70.97,-102.39)    3.20                11
 09/17/2023   19:18:25   ( -70.90,  65.10) 09/17/2023   19:17:19  ( -70.87,  65.12)    3.50                66
 09/20/2023   06:30:53   ( -71.07,-103.28) 09/20/2023   06:31:43  ( -71.04,-103.26)    2.72                50
 09/20/2023   07:21:36   (  70.90,  64.30) 09/20/2023   07:21:06  (  70.92,  64.21)    3.58                30