Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 11 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)
 11/22/2018   10:35:29   (  79.35, -83.06) 11/22/2018   10:34:25  (  79.34, -83.18)    2.66                64
 11/22/2018   11:24:49   ( -79.63,  86.46) 11/22/2018   11:25:02  ( -79.62,  86.42)    0.87                13
 11/25/2018   02:51:54   (  79.48,  33.67) 11/25/2018   02:51:15  (  79.49,  33.71)    0.85                39
 11/25/2018   03:41:13   ( -79.78,-156.49) 11/25/2018   03:41:51  ( -79.79,-156.34)    2.94                38
 11/27/2018   19:08:22   (  79.52, 149.86) 11/27/2018   19:08:09  (  79.52, 149.78)    1.67                13
 11/27/2018   19:57:41   ( -79.83, -40.27) 11/27/2018   19:58:45  ( -79.83, -40.23)    0.89                64
 11/30/2018   10:35:28   ( -79.42,  97.38) 11/30/2018   10:34:23  ( -79.42,  97.39)    0.27                65
 11/30/2018   11:24:46   (  79.71, -92.90) 11/30/2018   11:24:58  (  79.72, -92.77)    2.80                12
 12/03/2018   02:51:56   ( -79.46,-146.49) 12/03/2018   02:51:17  ( -79.45,-146.55)    1.21                39