Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 6 6.  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)
 06/07/2023   00:05:50   (  74.79, 165.38) 06/07/2023   00:04:41  (  74.80, 163.35)   59.34                69
 06/07/2023   00:56:41   ( -75.13, -28.25) 06/07/2023   00:55:33  ( -75.14, -28.34)    3.24                68
 06/07/2023   01:47:28   (  75.18, 138.90) 06/07/2023   01:46:32  (  75.17, 139.00)    2.93                56
 06/07/2023   02:38:12   ( -75.18, -53.78) 06/07/2023   02:37:31  ( -75.19, -53.68)    3.15                41
 06/07/2023   03:28:58   (  75.19, 113.51) 06/07/2023   03:28:31  (  75.18, 113.52)    1.06                27
 06/07/2023   04:19:42   ( -75.19, -79.17) 06/07/2023   04:19:30  ( -75.20, -79.16)    1.40                12
 06/07/2023   05:10:28   (  75.19,  88.12) 06/07/2023   05:10:30  (  75.18,  88.04)    2.68                 2
 06/07/2023   06:01:12   ( -75.19,-104.56) 06/07/2023   06:01:29  ( -75.20,-104.65)    2.88                17
 06/07/2023   06:51:59   (  75.24,  62.59) 06/07/2023   06:52:28  (  75.23,  62.70)    3.39                29
 06/07/2023   07:42:43   ( -75.24,-130.08) 06/07/2023   07:43:27  ( -75.25,-129.98)    2.99                44
 06/07/2023   08:33:29   (  75.25,  37.20) 06/07/2023   08:34:27  (  75.24,  37.22)    1.56                58
 06/07/2023   09:24:13   ( -75.25,-155.47) 06/07/2023   09:25:26  ( -75.25,-155.47)    0.80                73
 06/07/2023   10:15:09   (  75.73,  10.36) 06/07/2023   10:16:16  (  75.70,  13.25)   79.34                67