Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2022 11 30.  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   23:20:21   ( -75.69,  -5.37) 12/03/2022   23:19:14  ( -75.66,  -8.35)   81.91                67
 12/04/2022   00:11:15   (  76.12, 160.54) 12/04/2022   00:10:00  (  76.12, 160.57)    1.05                75
 12/04/2022   01:01:41   ( -76.13, -32.13) 12/04/2022   01:01:03  ( -76.13, -32.16)    0.71                38
 12/04/2022   01:52:26   (  76.14, 135.16) 12/04/2022   01:51:59  (  76.15, 135.17)    0.97                27
 12/04/2022   02:42:52   ( -76.16, -57.51) 12/04/2022   02:43:02  ( -76.16, -57.55)    1.18                10
 12/04/2022   03:33:36   (  76.16, 109.79) 12/04/2022   03:33:57  (  76.17, 109.77)    1.22                21
 12/04/2022   04:24:02   ( -76.18, -82.88) 12/04/2022   04:25:00  ( -76.19, -82.95)    1.69                58
 12/04/2022   05:14:47   (  76.19,  84.41) 12/04/2022   05:15:56  (  76.20,  84.38)    1.65                69
 12/12/2022   18:07:12   ( -76.07,  71.74) 12/12/2022   18:06:10  ( -76.08,  71.64)    2.57                62
 12/12/2022   18:57:57   (  76.11,-121.07) 12/12/2022   18:57:04  (  76.10,-121.00)    1.99                53
 12/12/2022   19:48:23   ( -76.09,  46.36) 12/12/2022   19:48:09  ( -76.10,  46.24)    3.12                14
 12/12/2022   20:39:08   (  76.13,-146.45) 12/12/2022   20:39:03  (  76.12,-146.40)    1.58                 5
 12/12/2022   21:29:34   ( -76.12,  20.98) 12/12/2022   21:30:08  ( -76.13,  20.85)    3.65                34
 12/12/2022   22:20:19   (  76.16,-171.83) 12/12/2022   22:21:02  (  76.15,-171.80)    1.25                43
 12/12/2022   23:10:51   ( -76.42,  -5.37) 12/12/2022   23:12:01  ( -76.41,  -3.55)   47.62                70