Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2022 12 1.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/03/2022   23:20:20   ( -75.62,  -5.14) 12/03/2022   23:19:15  ( -75.60,  -8.57)   94.66                65
 12/04/2022   00:11:15   (  76.09, 160.64) 12/04/2022   00:10:01  (  76.06, 160.33)    8.61                74
 12/04/2022   01:01:42   ( -76.15, -32.20) 12/04/2022   01:01:02  ( -76.16, -32.06)    3.66                40
 12/04/2022   01:52:27   (  76.16, 135.10) 12/04/2022   01:51:59  (  76.13, 135.10)    2.92                28
 12/04/2022   02:42:53   ( -76.18, -57.57) 12/04/2022   02:43:01  ( -76.18, -57.46)    3.14                 8
 12/04/2022   03:33:38   (  76.18, 109.73) 12/04/2022   03:33:58  (  76.16, 109.70)    2.69                20
 12/04/2022   04:24:04   ( -76.20, -82.95) 12/04/2022   04:25:00  ( -76.21, -82.85)    2.73                56
 12/04/2022   05:14:49   (  76.20,  84.36) 12/04/2022   05:15:57  (  76.18,  84.31)    2.63                68
 12/12/2022   18:07:19   ( -76.09,  71.64) 12/12/2022   18:06:10  ( -76.10,  71.75)    3.26                69
 12/12/2022   18:58:03   (  76.08,-120.99) 12/12/2022   18:57:05  (  76.08,-121.06)    1.85                58
 12/12/2022   19:48:30   ( -76.11,  46.27) 12/12/2022   19:48:09  ( -76.13,  46.35)    2.88                21
 12/12/2022   20:39:14   (  76.10,-146.37) 12/12/2022   20:39:04  (  76.11,-146.46)    2.64                10
 12/12/2022   21:29:41   ( -76.13,  20.90) 12/12/2022   21:30:08  ( -76.16,  20.95)    2.73                27
 12/12/2022   22:20:25   (  76.12,-171.74) 12/12/2022   22:21:03  (  76.13,-171.86)    3.40                38
 12/12/2022   23:10:53   ( -76.20,  -4.63) 12/12/2022   23:12:07  ( -76.18,  -4.45)    5.37                74