Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 3 30.  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)
 04/10/2021   23:47:28   (  78.45, 155.69) 04/10/2021   23:48:41  (  78.43, 155.74)    3.25                73
 04/11/2021   00:38:33   ( -78.44, -37.14) 04/11/2021   00:39:26  ( -78.45, -37.06)    1.73                53
 04/11/2021   01:29:28   (  78.47, 130.29) 04/11/2021   01:30:12  (  78.47, 130.11)    3.92                44
 04/11/2021   02:20:33   ( -78.46, -62.54) 04/11/2021   02:20:56  ( -78.45, -62.47)    1.93                23
 04/11/2021   03:11:29   (  78.45, 104.65) 04/11/2021   03:11:42  (  78.48, 104.71)    3.41                13
 04/11/2021   04:02:33   ( -78.47, -87.95) 04/11/2021   04:02:26  ( -78.46, -87.87)    2.54                 7
 04/11/2021   04:53:29   (  78.46,  79.25) 04/11/2021   04:53:12  (  78.48,  79.30)    2.48                17
 04/11/2021   05:44:33   ( -78.49,-113.36) 04/11/2021   05:43:56  ( -78.46,-113.27)    3.32                37
 04/11/2021   06:35:29   (  78.48,  53.84) 04/11/2021   06:34:42  (  78.49,  53.90)    1.67                47
 04/11/2021   07:26:33   ( -78.50,-138.76) 04/11/2021   07:25:27  ( -78.50,-138.90)    3.16                66
 04/11/2021   08:17:27   (  78.56,  28.92) 04/11/2021   08:16:14  (  78.57,  28.04)   19.44                73