Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 2 10.  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)
 02/13/2021   11:57:20   ( -78.62, 152.07) 02/13/2021   11:58:31  ( -78.64, 152.09)    2.27                71
 02/13/2021   12:48:21   (  78.64, -40.48) 02/13/2021   12:49:16  (  78.62, -40.53)    2.39                55
 02/13/2021   13:39:20   ( -78.63, 126.68) 02/13/2021   13:40:01  ( -78.64, 126.69)    1.02                41
 02/13/2021   14:30:21   (  78.66, -65.88) 02/13/2021   14:30:46  (  78.63, -65.93)    3.51                25
 02/13/2021   15:21:20   ( -78.65, 101.29) 02/13/2021   15:21:31  ( -78.64, 101.29)    0.27                11
 02/13/2021   16:12:22   (  78.64, -91.52) 02/13/2021   16:12:17  (  78.67, -91.56)    3.61                 5
 02/13/2021   17:03:20   ( -78.66,  75.90) 02/13/2021   17:03:01  ( -78.65,  75.89)    1.48                19
 02/13/2021   17:54:22   (  78.65,-116.92) 02/13/2021   17:53:47  (  78.67,-116.96)    2.50                35
 02/13/2021   18:45:20   ( -78.68,  50.50) 02/13/2021   18:44:31  ( -78.65,  50.50)    2.72                49
 02/13/2021   19:36:22   (  78.67,-142.31) 02/13/2021   19:35:17  (  78.68,-142.36)    1.50                65
 02/13/2021   20:27:16   ( -78.83,  26.10) 02/13/2021   20:26:06  ( -78.84,  23.91)   47.16                70