Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 4 3.  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   (  78.43, 155.53) 04/10/2021   23:48:41  (  78.45, 155.59)    2.84                73
 04/11/2021   00:38:32   ( -78.45, -37.08) 04/11/2021   00:39:25  ( -78.44, -37.01)    2.47                53
 04/11/2021   01:29:28   (  78.44, 130.13) 04/11/2021   01:30:11  (  78.46, 130.18)    1.98                43
 04/11/2021   02:20:32   ( -78.47, -62.49) 04/11/2021   02:20:55  ( -78.44, -62.41)    3.31                23
 04/11/2021   03:11:28   (  78.46, 104.72) 04/11/2021   03:11:41  (  78.46, 104.78)    1.37                13
 04/11/2021   04:02:32   ( -78.48, -87.89) 04/11/2021   04:02:26  ( -78.49, -88.04)    3.32                 6
 04/11/2021   04:53:28   (  78.47,  79.32) 04/11/2021   04:53:11  (  78.47,  79.38)    1.38                17
 04/11/2021   05:44:32   ( -78.50,-113.30) 04/11/2021   05:43:56  ( -78.49,-113.44)    3.29                36
 04/11/2021   06:35:28   (  78.49,  53.92) 04/11/2021   06:34:41  (  78.47,  53.97)    2.00                47
 04/11/2021   07:26:33   ( -78.47,-138.94) 04/11/2021   07:25:26  ( -78.50,-138.85)    3.18                67
 04/11/2021   08:17:26   (  78.57,  28.99) 04/11/2021   08:16:13  (  78.55,  28.11)   19.55                73