Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 12 29.  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   10:36:40   ( -76.53,  83.72) 01/01/2019   10:35:26  ( -76.73,  82.69)   34.69                74
 01/01/2019   11:24:54   (  79.63, -93.49) 01/01/2019   11:24:56  (  79.62, -93.63)    3.06                 2
 01/04/2019   02:52:01   ( -79.50,-146.13) 01/04/2019   02:51:10  ( -79.50,-146.16)    0.72                51
 01/04/2019   03:41:20   (  79.76,  23.39) 01/04/2019   03:41:46  (  79.76,  23.42)    0.76                26
 01/06/2019   19:08:27   ( -79.64, -29.30) 01/06/2019   19:08:00  ( -79.64, -29.15)    3.16                27
 01/06/2019   19:57:49   (  79.78, 139.41) 01/06/2019   19:58:40  (  79.78, 139.34)    1.56                51
 01/09/2019   11:24:55   ( -79.69,  86.99) 01/09/2019   11:24:53  ( -79.69,  87.04)    1.01                 2
 01/09/2019   12:13:05   (  81.65, -79.13) 01/09/2019   12:14:18  (  81.28, -78.49)   42.82                73
 01/12/2019   02:52:00   (  79.55,  34.18) 01/12/2019   02:51:05  (  79.55,  34.29)    2.27                55