Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 16.  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)
 04/18/2019   03:41:48   ( -79.37,-159.53) 04/18/2019   03:41:14  ( -79.36,-159.66)    3.05                34
 04/18/2019   04:31:07   (  79.64,   9.94) 04/18/2019   04:31:50  (  79.64,   9.92)    0.47                43
 04/20/2019   19:58:09   ( -79.47, -42.96) 04/20/2019   19:58:08  ( -79.47, -43.06)    2.07                 1
 04/20/2019   20:45:46   (  81.85, 163.99) 04/20/2019   20:46:59  (  81.29, 164.04)   62.14                73
 04/23/2019   11:25:07   (  79.41, -95.12) 04/23/2019   11:24:21  (  79.41, -95.05)    1.52                46
 04/23/2019   12:14:29   ( -79.60,  73.85) 04/23/2019   12:15:01  ( -79.60,  73.82)    0.64                32
 04/26/2019   03:41:30   (  79.42,  20.87) 04/26/2019   03:41:18  (  79.41,  20.72)    3.11                12
 04/26/2019   04:30:49   ( -79.73,-169.33) 04/26/2019   04:31:54  ( -79.73,-169.27)    1.21                65
 04/28/2019   19:08:28   ( -79.37, -31.25) 04/28/2019   19:07:31  ( -79.38, -31.11)    2.96                57