Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 10 12.  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)
 10/13/2021   10:35:51   (  79.06, -85.03) 10/13/2021   10:34:59  (  79.05, -85.12)    2.04                52
 10/13/2021   11:25:09   ( -79.42,  84.89) 10/13/2021   11:25:34  ( -79.42,  84.94)    1.20                25
 10/16/2021   02:52:17   (  79.15,  31.39) 10/16/2021   02:51:52  (  79.14,  31.31)    1.71                25
 10/16/2021   03:41:35   ( -79.50,-158.65) 10/16/2021   03:42:27  ( -79.50,-158.58)    1.47                52
 10/18/2021   18:20:20   ( -76.41, -32.65) 10/18/2021   18:19:06  ( -76.58, -33.52)   29.45                74
 10/18/2021   19:08:41   (  79.26, 148.01) 10/18/2021   19:08:43  (  79.26, 147.99)    0.47                 2
 10/21/2021   10:35:48   ( -79.07,  95.02) 10/21/2021   10:35:00  ( -79.06,  94.98)    0.83                48
 10/21/2021   11:25:05   (  79.41, -95.15) 10/21/2021   11:25:34  (  79.41, -95.06)    1.89                29
 10/24/2021   02:52:11   ( -79.25,-147.97) 10/24/2021   02:51:50  ( -79.25,-147.87)    2.17                21