Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 12 30.  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)
 01/01/2020   02:55:48   ( -68.37, -45.38) 01/01/2020   02:56:29  ( -68.39, -45.38)    2.07                41
 01/01/2020   03:46:32   (  68.25, 122.08) 01/01/2020   03:45:57  (  68.23, 122.08)    2.24                35
 01/03/2020   18:22:10   (  69.09, -97.89) 01/03/2020   18:23:19  (  68.93, -96.46)   59.70                69
 01/03/2020   19:12:39   ( -68.30,  70.48) 01/03/2020   19:12:58  ( -68.32,  70.42)    3.01                19
 01/03/2020   20:03:23   (  68.19,-122.06) 01/03/2020   20:02:25  (  68.21,-122.07)    2.43                58
 01/06/2020   10:38:50   (  68.39,  18.83) 01/06/2020   10:39:57  (  68.40,  18.77)    3.15                67
 01/06/2020   11:29:32   ( -68.29,-173.73) 01/06/2020   11:29:27  ( -68.29,-173.73)    0.20                 5
 01/06/2020   12:20:10   (  67.86,  -5.87) 01/06/2020   12:18:58  (  67.96,  -6.48)   27.96                72
 01/09/2020   02:55:43   (  68.38, 134.62) 01/09/2020   02:56:26  (  68.37, 134.61)    1.45                43
 01/09/2020   03:46:25   ( -68.28, -57.94) 01/09/2020   03:45:56  ( -68.26, -57.88)    3.30                29
 01/11/2020   18:22:07   ( -69.28,  81.87) 01/11/2020   18:23:15  ( -69.17,  83.85)   79.13                68
 01/11/2020   19:12:35   (  68.33,-109.53) 01/11/2020   19:12:55  (  68.33,-109.55)    1.11                20
 01/11/2020   20:03:17   ( -68.22,  57.92) 01/11/2020   20:02:25  ( -68.23,  57.96)    1.67                52