Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 4 28.  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)
 04/28/2021   11:24:59   (  79.32, -95.74) 04/28/2021   11:23:55  (  79.32, -95.69)    1.08                64
 04/28/2021   12:14:19   ( -79.59,  73.78) 04/28/2021   12:14:32  ( -79.60,  73.90)    2.76                13
 05/01/2021   03:41:24   (  79.40,  20.74) 05/01/2021   03:40:46  (  79.41,  20.79)    1.05                38
 05/01/2021   04:30:44   ( -79.68,-169.70) 05/01/2021   04:31:23  ( -79.69,-169.56)    2.84                39
 05/03/2021   19:57:49   (  79.49, 137.19) 05/03/2021   19:57:37  (  79.49, 137.26)    1.72                12
 05/03/2021   20:47:12   ( -79.65, -54.02) 05/03/2021   20:48:18  ( -79.64, -54.15)    2.79                66
 05/06/2021   11:24:56   ( -79.27,  84.00) 05/06/2021   11:23:53  ( -79.27,  83.98)    0.57                63
 05/06/2021   12:14:12   (  79.60,-106.13) 05/06/2021   12:14:26  (  79.61,-105.98)    3.05                14
 05/09/2021   03:41:18   ( -79.42,-159.11) 05/09/2021   03:40:41  ( -79.43,-159.04)    1.52                37
 05/09/2021   04:30:39   (  79.60,   9.73) 05/09/2021   04:31:20  (  79.59,   9.66)    1.36                41
 05/11/2021   19:57:44   ( -79.45, -43.03) 05/11/2021   19:57:34  ( -79.44, -43.12)    2.11                10