Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 2 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)
 02/27/2021   14:16:49   ( -78.31, 115.75) 02/27/2021   14:17:56  ( -78.37, 118.76)   68.05                67
 02/27/2021   15:07:39   (  78.59, -75.11) 02/27/2021   15:08:47  (  78.59, -75.22)    2.44                68
 02/27/2021   15:58:42   ( -78.57,  92.00) 02/27/2021   15:59:32  ( -78.61,  92.01)    3.81                50
 02/27/2021   16:49:39   (  78.61,-100.51) 02/27/2021   16:50:17  (  78.60,-100.62)    2.77                38
 02/27/2021   17:40:42   ( -78.59,  66.60) 02/27/2021   17:41:02  ( -78.61,  66.61)    2.59                20
 02/27/2021   18:31:40   (  78.59,-126.15) 02/27/2021   18:31:47  (  78.60,-126.02)    3.20                 7
 02/27/2021   19:22:42   ( -78.60,  41.21) 02/27/2021   19:22:32  ( -78.61,  41.21)    1.38                10
 02/27/2021   20:13:40   (  78.60,-151.54) 02/27/2021   20:13:17  (  78.60,-151.42)    2.77                23
 02/27/2021   21:04:42   ( -78.62,  15.82) 02/27/2021   21:04:02  ( -78.62,  15.81)    0.26                40
 02/27/2021   21:55:40   (  78.61,-176.94) 02/27/2021   21:54:47  (  78.61,-176.82)    2.79                53
 02/27/2021   22:46:42   ( -78.63,  -9.58) 02/27/2021   22:45:32  ( -78.62,  -9.59)    1.08                70