Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 3 15.  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)
 03/16/2021   19:58:00   (  79.51, 137.36) 03/16/2021   19:57:58  (  79.51, 137.23)    2.58                 2
 03/16/2021   20:46:49   ( -80.78, -43.61) 03/16/2021   20:48:03  ( -80.62, -43.18)   18.57                74
 03/19/2021   11:25:06   ( -79.41,  84.88) 03/19/2021   11:24:11  ( -79.41,  84.86)    0.48                55
 03/19/2021   12:14:27   (  79.59,-106.20) 03/19/2021   12:14:50  (  79.59,-106.32)    2.42                23
 03/22/2021   03:41:32   ( -79.49,-158.70) 03/22/2021   03:41:02  ( -79.49,-158.70)    0.15                30
 03/22/2021   04:30:52   (  79.71,  10.49) 03/22/2021   04:31:40  (  79.70,  10.42)    1.64                48
 03/24/2021   19:57:58   ( -79.60, -42.05) 03/24/2021   19:57:53  ( -79.60, -41.98)    1.38                 5
 03/24/2021   20:47:19   (  79.77, 126.89) 03/24/2021   20:48:32  (  79.77, 126.88)    0.24                73
 03/27/2021   11:25:04   (  79.43, -95.01) 03/27/2021   11:24:07  (  79.44, -94.89)    2.53                57