Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 1 11.  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)
 01/11/2020   18:22:07   ( -69.33,  81.81) 01/11/2020   18:23:14  ( -69.20,  83.89)   83.07                67
 01/11/2020   19:12:35   (  68.35,-109.57) 01/11/2020   19:12:55  (  68.33,-109.56)    3.03                20
 01/11/2020   20:03:16   ( -68.21,  57.93) 01/11/2020   20:02:25  ( -68.21,  57.93)    0.63                51
 01/14/2020   10:38:45   ( -68.52,-161.32) 01/14/2020   10:39:56  ( -68.47,-161.15)    8.65                71
 01/14/2020   11:29:27   (  68.30,   6.28) 01/14/2020   11:29:24  (  68.31,   6.30)    1.98                 3
 01/14/2020   12:20:08   ( -68.15, 173.78) 01/14/2020   12:18:55  ( -68.14, 173.73)    2.34                73
 01/17/2020   02:55:36   ( -68.41, -45.40) 01/17/2020   02:56:26  ( -68.42, -45.34)    2.39                50
 01/17/2020   03:46:19   (  68.24, 122.13) 01/17/2020   03:45:54  (  68.25, 122.11)    1.09                25
 01/17/2020   04:36:46   ( -67.34, -69.45) 01/17/2020   04:35:38  ( -67.36, -71.28)   78.65                68
 01/19/2020   18:22:03   (  69.42, -98.31) 01/19/2020   18:23:09  (  69.36, -95.89)   94.59                66
 01/19/2020   19:12:27   ( -68.36,  70.45) 01/19/2020   19:12:55  ( -68.37,  70.48)    1.56                28
 01/19/2020   20:03:10   (  68.19,-122.03) 01/19/2020   20:02:23  (  68.20,-122.08)    2.03                47
 01/22/2020   10:38:41   (  68.62,  18.57) 01/22/2020   10:39:53  (  68.54,  18.93)   17.30                72
 01/22/2020   11:29:19   ( -68.30,-173.70) 01/22/2020   11:29:25  ( -68.32,-173.69)    2.18                 6
 01/22/2020   12:20:02   (  68.14,  -6.19) 01/22/2020   12:18:53  (  68.15,  -6.25)    2.89                69