Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 4 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)
 04/15/2021   04:30:54   ( -79.62,-170.14) 04/15/2021   04:31:34  ( -79.62,-170.19)    1.08                40
 04/17/2021   19:57:57   (  79.51, 137.31) 04/17/2021   19:57:45  (  79.51, 137.33)    0.54                12
 04/17/2021   20:47:18   ( -79.74, -53.38) 04/17/2021   20:48:23  ( -79.75, -53.30)    1.65                65
 04/20/2021   11:25:05   ( -79.29,  84.09) 04/20/2021   11:24:01  ( -79.29,  84.06)    0.74                64
 04/20/2021   12:14:25   (  79.51,-106.80) 04/20/2021   12:14:39  (  79.50,-106.93)    2.85                14
 04/23/2021   03:41:29   ( -79.45,-159.00) 04/23/2021   03:40:50  ( -79.46,-158.88)    2.72                39
 04/23/2021   04:30:49   (  79.66,  10.13) 04/23/2021   04:31:28  (  79.66,  10.16)    0.67                39
 04/25/2021   19:57:56   ( -79.48, -42.90) 04/25/2021   19:57:43  ( -79.48, -42.88)    0.25                13
 04/25/2021   20:47:16   (  79.69, 126.23) 04/25/2021   20:48:21  (  79.68, 126.15)    1.91                65
 04/28/2021   11:24:58   (  79.37, -95.37) 04/28/2021   11:23:53  (  79.38, -95.22)    3.17                65