Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NPP
TLE Epoch: 2022 11 29.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/05/2022   19:12:32   ( -79.74,  36.05) 12/05/2022   19:11:21  ( -79.74,  35.92)    2.72                71
 12/05/2022   20:02:46   (  78.67,-148.75) 12/05/2022   20:01:35  (  78.66,-148.67)    1.75                71
 12/05/2022   20:53:22   ( -79.04,  16.20) 12/05/2022   20:52:30  ( -79.05,  16.10)    2.15                52
 12/05/2022   21:43:24   (  77.35,-167.18) 12/05/2022   21:42:32  (  77.34,-167.10)    2.13                52
 12/05/2022   22:34:03   ( -77.91,  -2.41) 12/05/2022   22:33:30  ( -77.91,  -2.48)    1.79                33
 12/05/2022   23:23:49   (  75.28, 175.00) 12/05/2022   23:23:16  (  75.27, 175.07)    2.24                33
 12/06/2022   00:14:33   ( -76.14, -20.38) 12/06/2022   00:14:19  ( -76.15, -20.44)    1.80                14
 12/06/2022   01:03:49   (  71.76, 157.90) 12/06/2022   01:03:35  (  71.75, 157.95)    1.93                14
 12/06/2022   01:51:58   ( -64.44, -25.19) 12/06/2022   01:52:02  ( -64.43, -25.16)    1.38                 4
 12/06/2022   02:43:06   (  65.67, 140.91) 12/06/2022   02:43:11  (  65.67, 140.93)    0.91                 5
 12/06/2022   03:28:46   ( -49.55, -41.12) 12/06/2022   03:29:08  ( -49.55, -41.12)    0.34                22
 12/06/2022   04:20:36   (  53.24, 124.45) 12/06/2022   04:21:00  (  53.25, 124.43)    1.22                24
 12/06/2022   05:32:59   ( -47.54, 127.68) 12/06/2022   05:33:43  ( -47.55, 127.72)    3.06                44
 12/06/2022   06:22:23   (  51.80, -63.09) 12/06/2022   06:23:11  (  51.80, -63.07)    1.91                48
 12/06/2022   07:09:09   ( -64.53, 112.69) 12/06/2022   07:10:12  ( -64.55, 112.73)    2.79                63