Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 12 31.  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)
 01/01/2019   10:36:39   ( -76.57,  83.87) 01/01/2019   10:35:25  ( -76.77,  82.85)   34.22                74
 01/01/2019   11:24:54   (  79.62, -93.50) 01/01/2019   11:24:56  (  79.61, -93.64)    3.08                 2
 01/04/2019   02:52:01   ( -79.50,-146.16) 01/04/2019   02:51:10  ( -79.50,-146.18)    0.47                51
 01/04/2019   03:41:20   (  79.76,  23.37) 01/04/2019   03:41:46  (  79.76,  23.42)    0.85                26
 01/06/2019   19:08:30   ( -79.52, -30.12) 01/06/2019   19:08:04  ( -79.51, -30.25)    2.80                26
 01/06/2019   19:57:49   (  79.78, 139.40) 01/06/2019   19:58:40  (  79.78, 139.34)    1.25                51
 01/09/2019   11:24:55   ( -79.69,  86.97) 01/09/2019   11:24:53  ( -79.69,  87.05)    1.67                 2
 01/09/2019   12:13:01   (  81.69, -77.48) 01/09/2019   12:14:14  (  81.30, -76.90)   45.16                73
 01/12/2019   02:52:03   (  79.43,  33.39) 01/12/2019   02:51:09  (  79.42,  33.24)    3.16                54
 01/12/2019   03:41:22   ( -79.74,-156.77) 01/12/2019   03:41:45  ( -79.74,-156.76)    0.19                23
 01/14/2019   19:08:27   (  79.63, 150.66) 01/14/2019   19:07:57  (  79.63, 150.77)    2.43                30