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   ( -68.39, -45.40) 01/01/2020   02:56:29  ( -68.38, -45.39)    1.04                41
 01/01/2020   03:46:31   (  68.21, 122.13) 01/01/2020   03:45:57  (  68.22, 122.06)    2.95                34
 01/03/2020   18:22:10   (  69.05, -97.83) 01/03/2020   18:23:19  (  68.98, -96.39)   57.83                69
 01/03/2020   19:12:40   ( -68.32,  70.46) 01/03/2020   19:12:59  ( -68.31,  70.41)    2.54                19
 01/03/2020   20:03:24   (  68.20,-122.08) 01/03/2020   20:02:26  (  68.20,-122.07)    0.29                58
 01/06/2020   10:38:50   (  68.40,  18.81) 01/06/2020   10:39:57  (  68.40,  18.77)    1.80                67
 01/06/2020   11:29:32   ( -68.31,-173.75) 01/06/2020   11:29:27  ( -68.29,-173.73)    1.88                 5
 01/06/2020   12:20:10   (  67.87,  -5.89) 01/06/2020   12:18:58  (  67.96,  -6.48)   26.59                72
 01/09/2020   02:55:43   (  68.40, 134.60) 01/09/2020   02:56:26  (  68.38, 134.63)    2.12                43
 01/09/2020   03:46:24   ( -68.25, -57.89) 01/09/2020   03:45:56  ( -68.28, -57.87)    3.15                28
 01/11/2020   18:22:07   ( -69.30,  81.84) 01/11/2020   18:23:15  ( -69.19,  83.88)   81.22                68
 01/11/2020   19:12:35   (  68.34,-109.55) 01/11/2020   19:12:55  (  68.36,-109.52)    2.16                20
 01/11/2020   20:03:16   ( -68.19,  57.96) 01/11/2020   20:02:26  ( -68.20,  57.92)    1.92                50