Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 12 24.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/26/2021   05:36:03   (  69.18,  93.73) 12/26/2021   05:37:07  (  69.19,  93.76)    1.44                64
 12/26/2021   06:26:44   ( -69.05, -98.77) 12/26/2021   06:26:37  ( -69.07, -98.75)    2.39                 7
 12/26/2021   07:17:21   (  68.55,  69.21) 12/26/2021   07:16:10  (  68.63,  68.34)   36.54                71
 12/28/2021   21:52:54   (  69.15,-150.44) 12/28/2021   21:53:33  (  69.13,-150.44)    2.34                39
 12/28/2021   22:43:35   ( -69.01,  17.06) 12/28/2021   22:43:03  ( -69.02,  17.05)    0.44                32
 12/31/2021   13:19:13   ( -69.87, 157.00) 12/31/2021   13:20:22  ( -69.72, 158.58)   63.22                69
 12/31/2021   14:09:45   (  69.11, -34.61) 12/31/2021   14:09:58  (  69.11, -34.58)    1.40                13
 12/31/2021   15:00:26   ( -68.98, 132.90) 12/31/2021   14:59:28  ( -69.00, 132.92)    2.67                58
 01/03/2022   05:35:51   ( -69.20, -86.26) 01/03/2022   05:36:55  ( -69.20, -86.23)    1.18                64
 01/03/2022   06:26:35   (  69.08,  81.21) 01/03/2022   06:26:22  (  69.08,  81.26)    2.23                13
 01/03/2022   07:17:09   ( -68.57,-110.78) 01/03/2022   07:15:58  ( -68.64,-111.65)   36.35                71
 01/05/2022   21:52:42   ( -69.17,  29.57) 01/05/2022   21:53:20  ( -69.16,  29.60)    2.22                38
 01/05/2022   22:43:25   (  69.01,-162.90) 01/05/2022   22:42:47  (  69.03,-162.91)    3.06                38