Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 9 21.  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   (  77.88,  28.45) 09/28/2021   08:30:06  (  77.85,  28.51)    3.01                67
 09/28/2021   09:19:55   ( -77.86,-164.36) 09/28/2021   09:20:51  ( -77.87,-164.24)    2.97                56
 09/28/2021   10:10:59   (  77.89,   3.00) 09/28/2021   10:11:37  (  77.90,   2.92)    2.35                38
 09/28/2021   11:01:55   ( -77.87, 170.19) 09/28/2021   11:02:21  ( -77.87, 170.37)    4.27                26
 09/28/2021   11:52:59   (  77.90, -22.45) 09/28/2021   11:53:07  (  77.90, -22.47)    0.92                 8
 09/28/2021   12:43:55   ( -77.88, 144.74) 09/28/2021   12:43:52  ( -77.91, 144.77)    3.85                 3
 09/28/2021   13:34:59   (  77.90, -47.89) 09/28/2021   13:34:37  (  77.90, -47.86)    0.66                22
 09/28/2021   14:25:54   ( -77.93, 119.51) 09/28/2021   14:25:22  ( -77.92, 119.38)    3.08                32
 09/28/2021   15:16:59   (  77.91, -73.34) 09/28/2021   15:16:07  (  77.91, -73.25)    2.07                52
 09/28/2021   16:07:54   ( -77.94,  94.06) 09/28/2021   16:06:52  ( -77.92,  93.99)    2.34                62
 09/28/2021   16:58:51   (  78.22, -97.01) 09/28/2021   16:57:44  (  78.19,-100.13)   70.97                67