Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 5 16.  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)
 05/17/2021   03:41:24   (  79.44,  21.00) 05/17/2021   03:41:00  (  79.44,  21.03)    0.67                24
 05/17/2021   04:30:46   ( -79.64,-170.00) 05/17/2021   04:31:40  ( -79.63,-170.13)    2.88                54
 05/19/2021   19:08:32   ( -79.24, -32.07) 05/19/2021   19:07:19  ( -79.24, -32.10)    0.64                73
 05/19/2021   19:57:50   (  79.54, 137.58) 05/19/2021   19:57:54  (  79.55, 137.69)    2.37                 4
 05/22/2021   11:24:57   ( -79.38,  84.72) 05/22/2021   11:24:12  ( -79.39,  84.79)    1.52                45
 05/22/2021   12:14:18   (  79.56,-106.40) 05/22/2021   12:14:51  (  79.56,-106.49)    1.86                33
 05/25/2021   03:41:25   ( -79.40,-159.29) 05/25/2021   03:41:09  ( -79.39,-159.39)    2.21                16
 05/25/2021   04:30:43   (  79.69,  10.40) 05/25/2021   04:31:44  (  79.69,  10.44)    0.85                61
 05/27/2021   19:08:29   (  79.24, 147.92) 05/27/2021   19:07:24  (  79.23, 147.83)    2.03                65
 05/27/2021   19:57:48   ( -79.56, -42.28) 05/27/2021   19:58:00  ( -79.56, -42.23)    0.97                12
 05/30/2021   11:24:53   (  79.40, -95.15) 05/30/2021   11:24:16  (  79.41, -95.07)    1.54                37