Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 6 10.  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   02:54:00   (  73.31,  11.11) 06/10/2021   02:52:47  (  73.61,   9.31)   65.77                73
 06/10/2021   03:41:15   ( -79.51,-158.53) 06/10/2021   03:41:16  ( -79.50,-158.51)    0.27                 1
 06/12/2021   19:08:21   (  79.37, 148.83) 06/12/2021   19:07:31  (  79.38, 148.95)    2.61                50
 06/12/2021   19:57:43   ( -79.57, -42.19) 06/12/2021   19:58:11  ( -79.57, -42.21)    0.61                28
 06/15/2021   11:24:49   (  79.44, -94.89) 06/15/2021   11:24:26  (  79.44, -94.78)    2.39                23
 06/15/2021   12:14:11   ( -79.63,  74.12) 06/15/2021   12:15:06  ( -79.63,  74.08)    0.90                55
 06/18/2021   02:51:57   ( -79.23,-148.01) 06/18/2021   02:50:44  ( -79.23,-148.01)    0.10                73
 06/18/2021   03:41:15   (  79.53,  21.64) 06/18/2021   03:41:19  (  79.54,  21.76)    2.65                 4
 06/20/2021   19:08:24   ( -79.32, -31.52) 06/20/2021   19:07:38  ( -79.33, -31.50)    0.50                46
 06/20/2021   19:57:44   (  79.54, 137.62) 06/20/2021   19:58:16  (  79.53, 137.48)    3.04                32
 06/23/2021   11:24:50   ( -79.45,  85.21) 06/23/2021   11:24:31  ( -79.45,  85.28)    1.50                19