Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 9 15.  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,  28.37)    3.02                67
 09/28/2021   09:19:55   ( -77.88,-164.24) 09/28/2021   09:20:52  ( -77.89,-164.36)    2.77                57
 09/28/2021   10:11:00   (  77.87,   2.89) 09/28/2021   10:11:37  (  77.89,   2.98)    3.14                37
 09/28/2021   11:01:55   ( -77.89, 170.31) 09/28/2021   11:02:22  ( -77.89, 170.25)    1.33                27
 09/28/2021   11:52:59   (  77.91, -22.34) 09/28/2021   11:53:07  (  77.89, -22.41)    3.08                 8
 09/28/2021   12:43:55   ( -77.90, 144.86) 09/28/2021   12:43:52  ( -77.90, 144.86)    0.48                 3
 09/28/2021   13:34:59   (  77.92, -47.79) 09/28/2021   13:34:37  (  77.89, -47.80)    3.34                22
 09/28/2021   14:25:55   ( -77.91, 119.41) 09/28/2021   14:25:22  ( -77.90, 119.47)    1.74                33
 09/28/2021   15:16:59   (  77.93, -73.24) 09/28/2021   15:16:08  (  77.94, -73.40)    3.79                51
 09/28/2021   16:07:55   ( -77.92,  93.97) 09/28/2021   16:06:52  ( -77.90,  94.08)    3.19                63
 09/28/2021   16:58:52   (  78.20, -97.13) 09/28/2021   16:57:45  (  78.22,-100.28)   71.58                67