Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 5 31.  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   (  74.80, 165.35) 06/07/2023   00:04:41  (  74.79, 163.33)   58.94                69
 06/07/2023   00:56:41   ( -75.13, -28.26) 06/07/2023   00:55:33  ( -75.14, -28.35)    2.70                68
 06/07/2023   01:47:27   (  75.15, 139.01) 06/07/2023   01:46:32  (  75.17, 138.98)    2.63                55
 06/07/2023   02:38:12   ( -75.18, -53.79) 06/07/2023   02:37:31  ( -75.19, -53.68)    3.24                41
 06/07/2023   03:28:58   (  75.20, 113.48) 06/07/2023   03:28:31  (  75.17, 113.50)    2.91                27
 06/07/2023   04:19:42   ( -75.19, -79.18) 06/07/2023   04:19:30  ( -75.20, -79.17)    1.01                12
 06/07/2023   05:10:28   (  75.20,  88.09) 06/07/2023   05:10:29  (  75.22,  88.17)    3.07                 1
 06/07/2023   06:01:12   ( -75.19,-104.57) 06/07/2023   06:01:29  ( -75.20,-104.65)    2.41                17
 06/07/2023   06:51:58   (  75.21,  62.70) 06/07/2023   06:52:28  (  75.23,  62.69)    2.20                30
 06/07/2023   07:42:43   ( -75.25,-130.10) 06/07/2023   07:43:27  ( -75.25,-129.99)    3.22                44
 06/07/2023   08:33:29   (  75.26,  37.17) 06/07/2023   08:34:27  (  75.23,  37.21)    3.33                58
 06/07/2023   09:24:13   ( -75.25,-155.49) 06/07/2023   09:25:26  ( -75.25,-155.47)    0.65                73
 06/07/2023   10:15:09   (  75.74,  10.32) 06/07/2023   10:16:16  (  75.69,  13.23)   79.88                67