Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 12 5.  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)
 12/07/2021   13:19:47   (  70.07, -23.39) 12/07/2021   13:20:53  (  69.96, -21.08)   88.50                66
 12/07/2021   14:10:12   ( -69.09, 145.35) 12/07/2021   14:10:37  ( -69.07, 145.36)    2.39                25
 12/07/2021   15:00:56   (  68.96, -47.17) 12/07/2021   15:00:04  (  68.96, -47.13)    1.32                52
 12/10/2021   05:36:22   (  69.16,  93.72) 12/10/2021   05:37:32  (  69.16,  93.73)    0.97                70
 12/10/2021   06:27:03   ( -69.02, -98.78) 12/10/2021   06:27:02  ( -69.05, -98.78)    2.93                 1
 12/10/2021   07:17:44   (  68.74,  68.92) 12/10/2021   07:16:32  (  68.77,  68.51)   16.65                72
 12/12/2021   21:53:14   (  69.15,-150.49) 12/12/2021   21:53:57  (  69.13,-150.42)    3.25                43
 12/12/2021   22:43:55   ( -69.01,  17.01) 12/12/2021   22:43:27  ( -69.02,  17.07)    2.64                28
 12/15/2021   13:19:34   ( -69.95, 156.81) 12/15/2021   13:20:42  ( -69.88, 158.81)   76.56                68
 12/15/2021   14:10:04   (  69.09, -34.64) 12/15/2021   14:10:21  (  69.10, -34.59)    2.05                17
 12/15/2021   15:00:45   ( -68.96, 132.87) 12/15/2021   14:59:52  ( -68.94, 132.84)    2.41                53
 12/18/2021   05:36:11   ( -69.16, -86.25) 12/18/2021   05:37:19  ( -69.17, -86.25)    2.18                68
 12/18/2021   06:26:55   (  69.04,  81.22) 12/18/2021   06:26:46  (  69.05,  81.24)    1.95                 9
 12/18/2021   07:17:32   ( -68.69,-110.99) 12/18/2021   07:16:20  ( -68.73,-111.53)   22.68                72