Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 2 13.  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, 152.12) 02/13/2021   11:58:31  ( -78.63, 152.13)    0.80                71
 02/13/2021   12:48:22   (  78.62, -40.67) 02/13/2021   12:49:17  (  78.65, -40.71)    3.99                55
 02/13/2021   13:39:20   ( -78.64, 126.73) 02/13/2021   13:40:01  ( -78.63, 126.73)    0.50                41
 02/13/2021   14:30:22   (  78.63, -66.07) 02/13/2021   14:30:47  (  78.66, -66.11)    2.86                25
 02/13/2021   15:21:20   ( -78.65, 101.33) 02/13/2021   15:21:31  ( -78.64, 101.33)    1.73                11
 02/13/2021   16:12:22   (  78.65, -91.46) 02/13/2021   16:12:17  (  78.66, -91.51)    1.81                 5
 02/13/2021   17:03:20   ( -78.67,  75.94) 02/13/2021   17:03:01  ( -78.64,  75.93)    2.97                19
 02/13/2021   17:54:22   (  78.66,-116.86) 02/13/2021   17:53:47  (  78.66,-116.90)    1.09                35
 02/13/2021   18:45:21   ( -78.65,  50.31) 02/13/2021   18:44:32  ( -78.68,  50.30)    3.79                49
 02/13/2021   19:36:22   (  78.68,-142.25) 02/13/2021   19:35:17  (  78.67,-142.30)    1.38                65
 02/13/2021   20:27:16   ( -78.83,  26.15) 02/13/2021   20:26:06  ( -78.83,  23.95)   47.29                70