Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 12 7.  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, 128.83) 12/08/2021   13:54:04  ( -77.62, 128.90)    2.53                69
 12/08/2021   14:43:49   (  77.64, -63.89) 12/08/2021   14:44:50  (  77.63, -63.85)    0.99                61
 12/08/2021   15:34:55   ( -77.64, 103.37) 12/08/2021   15:35:35  ( -77.67, 103.30)    3.33                40
 12/08/2021   16:25:48   (  77.65, -89.35) 12/08/2021   16:26:19  (  77.64, -89.26)    2.18                31
 12/08/2021   17:16:54   ( -77.65,  77.90) 12/08/2021   17:17:04  ( -77.68,  77.89)    3.01                10
 12/08/2021   18:07:48   (  77.65,-114.81) 12/08/2021   18:07:49  (  77.65,-114.67)    3.44                 1
 12/08/2021   18:58:54   ( -77.66,  52.44) 12/08/2021   18:58:34  ( -77.68,  52.48)    3.21                20
 12/08/2021   19:49:48   (  77.66,-140.28) 12/08/2021   19:49:20  (  77.70,-140.28)    4.49                28
 12/08/2021   20:40:53   ( -77.70,  27.18) 12/08/2021   20:40:04  ( -77.69,  27.07)    2.97                49
 12/08/2021   21:31:47   (  77.70,-165.53) 12/08/2021   21:30:50  (  77.71,-165.69)    3.71                57
 12/08/2021   22:22:49   ( -77.86,   2.56) 12/08/2021   22:21:38  ( -77.86,   0.85)   40.03                71