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   10:36:40   ( -76.53,  83.73) 01/01/2019   10:35:26  ( -76.73,  82.69)   34.67                74
 01/01/2019   11:24:55   (  79.59, -93.74) 01/01/2019   11:24:57  (  79.58, -93.89)    3.09                 2
 01/04/2019   02:52:02   ( -79.46,-146.39) 01/04/2019   02:51:11  ( -79.47,-146.42)    0.72                51
 01/04/2019   03:41:20   (  79.76,  23.40) 01/04/2019   03:41:46  (  79.76,  23.44)    0.80                26
 01/06/2019   19:08:30   ( -79.53, -30.09) 01/06/2019   19:08:04  ( -79.52, -30.23)    3.08                26
 01/06/2019   19:57:49   (  79.78, 139.43) 01/06/2019   19:58:40  (  79.78, 139.36)    1.40                51
 01/09/2019   11:24:55   ( -79.69,  87.00) 01/09/2019   11:24:53  ( -79.69,  87.06)    1.33                 2
 01/09/2019   12:13:03   (  81.67, -78.28) 01/09/2019   12:14:16  (  81.29, -77.66)   44.05                73
 01/12/2019   02:52:00   (  79.55,  34.20) 01/12/2019   02:51:05  (  79.56,  34.33)    2.89                55