Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 12 11.  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)
 12/13/2021   18:19:01   (  79.49, 161.99) 12/13/2021   18:18:15  (  79.49, 162.13)    2.90                46
 12/13/2021   19:08:25   ( -79.61, -29.53) 12/13/2021   19:08:57  ( -79.60, -29.66)    2.71                32
 12/16/2021   10:35:29   (  79.55, -81.68) 12/16/2021   10:35:05  (  79.56, -81.54)    3.05                24
 12/16/2021   11:24:52   ( -79.71,  87.10) 12/16/2021   11:25:46  ( -79.70,  86.98)    2.53                54
 12/19/2021   02:51:59   (  79.53,  34.07) 12/19/2021   02:51:58  (  79.52,  33.96)    2.51                 1
 12/19/2021   03:40:10   ( -81.60,-132.59) 12/19/2021   03:41:24  ( -81.24,-132.16)   39.89                74
 12/21/2021   18:19:06   ( -79.41, -18.55) 12/21/2021   18:18:09  ( -79.41, -18.49)    1.42                57
 12/21/2021   19:08:26   (  79.62, 150.59) 12/21/2021   19:08:47  (  79.62, 150.54)    1.00                21
 12/24/2021   10:35:34   ( -79.42,  97.39) 12/24/2021   10:35:00  ( -79.41,  97.27)    2.72                34