Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 9 20.  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)
 09/28/2021   08:29:00   (  77.86,  28.33) 09/28/2021   08:30:07  (  77.88,  28.40)    2.82                67
 09/28/2021   09:19:55   ( -77.88,-164.26) 09/28/2021   09:20:52  ( -77.89,-164.35)    2.35                57
 09/28/2021   10:11:00   (  77.87,   2.88) 09/28/2021   10:11:37  (  77.88,   3.01)    3.32                37
 09/28/2021   11:01:55   ( -77.89, 170.29) 09/28/2021   11:02:22  ( -77.89, 170.26)    0.86                27
 09/28/2021   11:52:59   (  77.91, -22.35) 09/28/2021   11:53:07  (  77.88, -22.39)    3.31                 8
 09/28/2021   12:43:55   ( -77.90, 144.84) 09/28/2021   12:43:52  ( -77.90, 144.87)    0.63                 3
 09/28/2021   13:34:59   (  77.92, -47.79) 09/28/2021   13:34:37  (  77.89, -47.78)    3.86                22
 09/28/2021   14:25:55   ( -77.91, 119.39) 09/28/2021   14:25:22  ( -77.90, 119.48)    2.11                33
 09/28/2021   15:16:59   (  77.93, -73.24) 09/28/2021   15:16:08  (  77.93, -73.37)    3.09                51
 09/28/2021   16:07:55   ( -77.92,  93.95) 09/28/2021   16:06:53  ( -77.94,  93.88)    3.38                62
 09/28/2021   16:58:51   (  78.20, -97.13) 09/28/2021   16:57:44  (  78.22,-100.25)   70.91                67