Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 25.  Predictions up to the next  14.0 days:

     Date     Time(AURA) AURA Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/26/2019   03:41:45   (  79.39,  20.60) 04/26/2019   03:41:18  (  79.38,  20.46)    3.05                27
 04/26/2019   04:31:04   ( -79.69,-169.65) 04/26/2019   04:31:54  ( -79.69,-169.59)    1.07                50
 04/28/2019   19:10:22   ( -75.09, -48.92) 04/28/2019   19:09:08  ( -75.35, -50.30)   48.82                74
 04/28/2019   19:58:09   (  79.54, 137.51) 04/28/2019   19:58:10  (  79.54, 137.56)    0.85                 1
 05/01/2019   11:25:15   ( -79.39,  84.71) 05/01/2019   11:24:27  ( -79.40,  84.84)    2.85                48
 05/01/2019   12:14:36   (  79.58,-106.37) 05/01/2019   12:15:06  (  79.57,-106.44)    1.50                30
 05/04/2019   03:41:41   ( -79.46,-158.93) 05/04/2019   03:41:22  ( -79.46,-158.90)    0.64                19
 05/04/2019   04:31:00   (  79.72,  10.54) 05/04/2019   04:31:58  (  79.73,  10.67)    2.84                58
 05/06/2019   19:08:45   (  79.29, 148.16) 05/06/2019   19:07:37  (  79.29, 148.22)    1.26                68
 05/06/2019   19:58:06   ( -79.53, -42.58) 05/06/2019   19:58:16  ( -79.52, -42.64)    1.39                10
 05/09/2019   11:25:11   (  79.35, -95.54) 05/09/2019   11:24:32  (  79.35, -95.56)    0.51                39