Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 6 8.  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)
 06/10/2021   02:53:40   (  74.35,  13.40) 06/10/2021   02:52:27  (  74.60,  11.80)   55.41                73
 06/10/2021   03:41:14   ( -79.54,-158.28) 06/10/2021   03:41:15  ( -79.55,-158.16)    2.47                 1
 06/12/2021   19:08:21   (  79.29, 148.28) 06/12/2021   19:07:34  (  79.29, 148.23)    0.94                47
 06/12/2021   19:57:40   ( -79.60, -41.96) 06/12/2021   19:58:10  ( -79.61, -41.85)    2.32                30
 06/15/2021   11:24:44   (  79.42, -94.95) 06/15/2021   11:24:26  (  79.42, -94.97)    0.60                18
 06/15/2021   12:14:04   ( -79.70,  74.61) 06/15/2021   12:15:03  ( -79.70,  74.73)    2.60                59
 06/18/2021   02:51:52   ( -79.18,-148.30) 06/18/2021   02:50:46  ( -79.17,-148.43)    2.78                66
 06/18/2021   03:41:09   (  79.52,  21.57) 06/18/2021   03:41:20  (  79.52,  21.58)    0.23                11
 06/20/2021   19:08:16   ( -79.31, -31.58) 06/20/2021   19:07:39  ( -79.31, -31.66)    1.77                37