Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 3 29.  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)
 03/29/2019   19:12:46   (  68.37,-109.64) 03/29/2019   19:13:33  (  68.35,-109.58)    2.74                47
 03/29/2019   20:03:26   ( -68.19,  57.91) 03/29/2019   20:03:04  ( -68.19,  57.86)    2.31                22
 03/29/2019   20:53:54   (  67.19,-133.56) 03/29/2019   20:52:46  (  67.24,-135.58)   87.43                68
 04/01/2019   11:29:38   (  68.30,   6.23) 04/01/2019   11:30:03  (  68.31,   6.24)    0.76                25
 04/01/2019   12:20:19   ( -68.17, 173.71) 04/01/2019   12:19:34  ( -68.15, 173.68)    2.69                45
 04/04/2019   02:55:51   ( -68.63, -45.73) 04/04/2019   02:57:03  ( -68.54, -45.25)   21.97                72
 04/04/2019   03:46:30   (  68.24, 122.09) 04/04/2019   03:46:33  (  68.25, 122.05)    2.38                 3
 04/04/2019   04:37:12   ( -68.15, -70.49) 04/04/2019   04:36:03  ( -68.15, -70.43)    2.28                69
 04/06/2019   19:12:39   ( -68.35,  70.42) 04/06/2019   19:13:35  ( -68.37,  70.43)    2.50                56
 04/06/2019   20:03:23   (  68.23,-122.12) 04/06/2019   20:03:02  (  68.25,-122.07)    3.02                21
 04/06/2019   20:53:53   ( -67.49,  46.11) 04/06/2019   20:52:43  ( -67.54,  44.74)   58.35                70
 04/09/2019   11:29:30   ( -68.28,-173.72) 04/09/2019   11:30:04  ( -68.31,-173.77)    3.28                34
 04/09/2019   12:20:14   (  68.17,  -6.26) 04/09/2019   12:19:31  (  68.18,  -6.27)    1.73                43
 04/12/2019   02:55:48   (  68.75, 134.13) 04/12/2019   02:56:59  (  68.61, 134.85)   32.66                71
 04/12/2019   03:46:23   ( -68.28, -57.93) 04/12/2019   03:46:33  ( -68.29, -57.90)    2.29                10
 04/12/2019   04:37:06   (  68.11, 109.59) 04/12/2019   04:36:01  (  68.11, 109.53)    2.60                65