Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 12 3.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/08/2021   13:52:55   ( -77.64, 128.84) 12/08/2021   13:54:04  ( -77.62, 128.91)    2.75                69
 12/08/2021   14:43:49   (  77.64, -63.90) 12/08/2021   14:44:50  (  77.64, -63.86)    0.94                61
 12/08/2021   15:34:55   ( -77.64, 103.37) 12/08/2021   15:35:35  ( -77.67, 103.31)    3.12                40
 12/08/2021   16:25:49   (  77.64, -89.36) 12/08/2021   16:26:20  (  77.64, -89.27)    2.23                31
 12/08/2021   17:16:54   ( -77.65,  77.91) 12/08/2021   17:17:04  ( -77.68,  77.90)    2.82                10
 12/08/2021   18:07:48   (  77.65,-114.82) 12/08/2021   18:07:49  (  77.65,-114.68)    3.52                 1
 12/08/2021   18:58:54   ( -77.66,  52.44) 12/08/2021   18:58:34  ( -77.68,  52.49)    3.09                20
 12/08/2021   19:49:47   (  77.69,-140.08) 12/08/2021   19:49:19  (  77.66,-140.09)    3.99                28
 12/08/2021   20:40:53   ( -77.70,  27.19) 12/08/2021   20:40:04  ( -77.69,  27.08)    2.91                49
 12/08/2021   21:31:47   (  77.70,-165.54) 12/08/2021   21:30:50  (  77.71,-165.70)    3.69                57
 12/08/2021   22:22:49   ( -77.86,   2.57) 12/08/2021   22:21:38  ( -77.86,   0.86)   39.87                71