Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 1 21.  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)
 01/22/2019   19:08:31   ( -79.57, -29.78) 01/22/2019   19:07:57  ( -79.56, -29.84)    1.52                34
 01/22/2019   19:57:50   (  79.82, 139.76) 01/22/2019   19:58:33  (  79.82, 139.84)    1.64                43
 01/25/2019   11:24:59   ( -79.63,  86.61) 01/25/2019   11:24:49  ( -79.63,  86.56)    0.86                10
 01/25/2019   12:14:17   (  79.92,-103.57) 01/25/2019   12:15:24  (  79.92,-103.44)    2.75                67
 01/28/2019   02:52:06   (  79.47,  33.65) 01/28/2019   02:51:03  (  79.46,  33.59)    1.39                63
 01/28/2019   03:41:26   ( -79.74,-156.75) 01/28/2019   03:41:40  ( -79.74,-156.75)    0.18                14
 01/30/2019   19:08:33   (  79.57, 150.24) 01/30/2019   19:07:54  (  79.57, 150.24)    0.15                39
 01/30/2019   19:57:54   ( -79.80, -40.39) 01/30/2019   19:58:32  ( -79.81, -40.33)    1.28                38
 02/02/2019   11:24:59   (  79.66, -93.18) 02/02/2019   11:24:44  (  79.67, -93.10)    1.87                15