Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 9 16.  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   08:28:59   (  77.87,  28.40) 09/28/2021   08:30:06  (  77.86,  28.46)    1.56                67
 09/28/2021   09:19:54   ( -77.90,-164.18) 09/28/2021   09:20:51  ( -77.87,-164.27)    3.15                57
 09/28/2021   10:10:59   (  77.88,   2.95) 09/28/2021   10:11:36  (  77.87,   3.07)    3.01                37
 09/28/2021   11:01:54   ( -77.90, 170.37) 09/28/2021   11:02:21  ( -77.88, 170.34)    3.08                27
 09/28/2021   11:52:59   (  77.89, -22.49) 09/28/2021   11:53:07  (  77.91, -22.52)    2.91                 8
 09/28/2021   12:43:54   ( -77.91, 144.92) 09/28/2021   12:43:51  ( -77.88, 144.95)    3.66                 3
 09/28/2021   13:34:59   (  77.90, -47.94) 09/28/2021   13:34:37  (  77.92, -47.91)    2.26                22
 09/28/2021   14:25:54   ( -77.92, 119.48) 09/28/2021   14:25:22  ( -77.92, 119.35)    2.89                32
 09/28/2021   15:16:59   (  77.90, -73.39) 09/28/2021   15:16:07  (  77.92, -73.31)    2.46                52
 09/28/2021   16:07:54   ( -77.93,  94.03) 09/28/2021   16:06:52  ( -77.93,  93.96)    1.59                62
 09/28/2021   16:58:51   (  78.21, -97.06) 09/28/2021   16:57:44  (  78.20,-100.18)   70.93                67