Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 2 8.  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   ( -78.63, 152.17) 02/13/2021   11:58:31  ( -78.62, 152.18)    0.91                71
 02/13/2021   12:48:22   (  78.62, -40.64) 02/13/2021   12:49:17  (  78.65, -40.68)    3.08                55
 02/13/2021   13:39:20   ( -78.64, 126.77) 02/13/2021   13:40:01  ( -78.62, 126.78)    2.09                41
 02/13/2021   14:30:22   (  78.64, -66.04) 02/13/2021   14:30:47  (  78.65, -66.07)    1.98                25
 02/13/2021   15:21:20   ( -78.66, 101.38) 02/13/2021   15:21:31  ( -78.63, 101.38)    3.32                11
 02/13/2021   16:12:22   (  78.65, -91.43) 02/13/2021   16:12:17  (  78.66, -91.47)    1.08                 5
 02/13/2021   17:03:21   ( -78.64,  75.75) 02/13/2021   17:03:02  ( -78.67,  75.75)    3.45                19
 02/13/2021   17:54:22   (  78.66,-116.83) 02/13/2021   17:53:47  (  78.66,-116.87)    1.10                35
 02/13/2021   18:45:21   ( -78.65,  50.35) 02/13/2021   18:44:32  ( -78.67,  50.35)    2.21                49
 02/13/2021   19:36:22   (  78.68,-142.22) 02/13/2021   19:35:17  (  78.66,-142.27)    2.00                65
 02/13/2021   20:27:16   ( -78.84,  26.20) 02/13/2021   20:26:06  ( -78.83,  24.01)   47.19                70