Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 12 7.  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   (  70.04, -23.35) 12/07/2021   13:20:54  (  69.93, -21.12)   85.56                67
 12/07/2021   14:10:12   ( -69.06, 145.39) 12/07/2021   14:10:37  ( -69.09, 145.39)    3.59                25
 12/07/2021   15:00:56   (  68.93, -47.13) 12/07/2021   15:00:05  (  68.93, -47.17)    1.61                51
 12/10/2021   05:36:21   (  69.13,  93.76) 12/10/2021   05:37:32  (  69.14,  93.69)    2.76                71
 12/10/2021   06:27:03   ( -69.05, -98.82) 12/10/2021   06:27:02  ( -69.02, -98.82)    3.26                 1
 12/10/2021   07:17:44   (  68.76,  68.88) 12/10/2021   07:16:31  (  68.80,  68.55)   14.14                73
 12/12/2021   21:53:13   (  69.12,-150.45) 12/12/2021   21:53:57  (  69.11,-150.46)    1.46                44
 12/12/2021   22:43:54   ( -68.99,  17.05) 12/12/2021   22:43:27  ( -68.99,  17.03)    1.08                27
 12/15/2021   13:19:35   ( -69.98, 156.78) 12/15/2021   13:20:43  ( -69.85, 158.76)   77.23                68
 12/15/2021   14:10:04   (  69.06, -34.59) 12/15/2021   14:10:22  (  69.07, -34.62)    1.52                18
 12/15/2021   15:00:46   ( -68.98, 132.84) 12/15/2021   14:59:52  ( -68.96, 132.87)    2.51                54
 12/18/2021   05:36:12   ( -69.18, -86.28) 12/18/2021   05:37:19  ( -69.20, -86.22)    3.36                67
 12/18/2021   06:26:55   (  69.01,  81.26) 12/18/2021   06:26:47  (  69.02,  81.20)    3.14                 8
 12/18/2021   07:17:33   ( -68.71,-111.02) 12/18/2021   07:16:20  ( -68.75,-111.51)   20.38                73
 12/20/2021   21:53:02   ( -69.12,  29.57) 12/20/2021   21:53:43  ( -69.15,  29.60)    3.12                41
 12/20/2021   22:43:46   (  69.01,-162.96) 12/20/2021   22:43:10  (  69.03,-162.91)    2.95                36