Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 15.  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)
 04/15/2019   11:25:25   ( -79.37,  84.56) 04/15/2019   11:24:17  ( -79.38,  84.69)    2.77                68
 04/15/2019   12:14:46   (  79.56,-106.51) 04/15/2019   12:14:56  (  79.56,-106.55)    1.07                10
 04/18/2019   03:41:49   ( -79.36,-159.64) 04/18/2019   03:41:15  ( -79.35,-159.77)    2.98                34
 04/18/2019   04:31:07   (  79.66,  10.08) 04/18/2019   04:31:50  (  79.65,  10.06)    0.40                43
 04/20/2019   19:58:08   ( -79.49, -42.83) 04/20/2019   19:58:07  ( -79.49, -42.92)    1.89                 1
 04/20/2019   20:45:44   (  81.85, 164.62) 04/20/2019   20:46:57  (  81.28, 164.63)   63.02                73
 04/23/2019   11:25:07   (  79.39, -95.28) 04/23/2019   11:24:21  (  79.39, -95.20)    1.82                46
 04/23/2019   12:14:28   ( -79.62,  73.97) 04/23/2019   12:15:00  ( -79.62,  73.96)    0.37                32
 04/26/2019   03:41:29   (  79.44,  20.94) 04/26/2019   03:41:17  (  79.43,  20.82)    2.65                12
 04/26/2019   04:30:48   ( -79.74,-169.24) 04/26/2019   04:31:53  ( -79.74,-169.16)    1.69                65
 04/28/2019   19:08:31   ( -79.26, -31.96) 04/28/2019   19:07:35  ( -79.25, -32.08)    2.74                56