Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 12 14.  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)
 12/16/2021   10:35:29   (  79.54, -81.75) 12/16/2021   10:35:05  (  79.55, -81.61)    3.15                24
 12/16/2021   11:24:52   ( -79.69,  87.01) 12/16/2021   11:25:46  ( -79.69,  86.90)    2.33                54
 12/19/2021   02:51:59   (  79.52,  34.00) 12/19/2021   02:51:58  (  79.52,  33.89)    2.32                 1
 12/19/2021   03:40:08   ( -81.62,-131.91) 12/19/2021   03:41:22  ( -81.26,-131.50)   40.85                74
 12/21/2021   18:19:05   ( -79.43, -18.38) 12/21/2021   18:18:08  ( -79.44, -18.29)    1.76                57
 12/21/2021   19:08:25   (  79.65, 150.79) 12/21/2021   19:08:46  (  79.64, 150.76)    0.74                21
 12/24/2021   10:35:34   ( -79.44,  97.57) 12/24/2021   10:35:00  ( -79.43,  97.47)    2.29                34
 12/24/2021   11:24:52   (  79.73, -92.73) 12/24/2021   11:25:35  (  79.74, -92.65)    1.65                43
 12/27/2021   02:51:59   ( -79.56,-145.73) 12/27/2021   02:51:47  ( -79.56,-145.69)    0.76                12