Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 22.  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)
 04/23/2019   11:25:20   (  79.32, -95.76) 04/23/2019   11:24:24  (  79.32, -95.78)    0.28                56
 04/23/2019   12:14:41   ( -79.55,  73.43) 04/23/2019   12:15:03  ( -79.54,  73.31)    2.66                22
 04/26/2019   03:41:45   (  79.40,  20.64) 04/26/2019   03:41:18  (  79.39,  20.51)    2.84                27
 04/26/2019   04:31:05   ( -79.66,-169.86) 04/26/2019   04:31:55  ( -79.67,-169.81)    1.24                50
 04/28/2019   19:10:17   ( -75.35, -48.22) 04/28/2019   19:09:03  ( -75.60, -49.53)   46.07                74
 04/28/2019   19:58:09   (  79.55, 137.54) 04/28/2019   19:58:10  (  79.55, 137.61)    1.48                 1
 05/01/2019   11:25:17   ( -79.32,  84.23) 05/01/2019   11:24:30  ( -79.31,  84.13)    2.24                47
 05/01/2019   12:14:36   (  79.58,-106.36) 05/01/2019   12:15:06  (  79.58,-106.37)    0.34                30
 05/04/2019   03:41:40   ( -79.50,-158.66) 05/04/2019   03:41:21  ( -79.51,-158.53)    2.87                19
 05/04/2019   04:31:02   (  79.64,   9.99) 05/04/2019   04:32:01  (  79.64,   9.92)    1.36                59
 05/06/2019   19:08:46   (  79.24, 147.88) 05/06/2019   19:07:39  (  79.24, 147.80)    1.75                67