Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 1 17.  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)
 01/19/2019   10:39:33   (  68.38,  18.70) 01/19/2019   10:40:28  (  68.36,  18.72)    1.85                55
 01/19/2019   11:30:14   ( -68.24,-173.80) 01/19/2019   11:29:58  ( -68.25,-173.78)    2.22                16
 01/19/2019   12:20:46   (  67.47,  -5.54) 01/19/2019   12:19:36  (  67.53,  -6.98)   61.38                70
 01/22/2019   02:56:25   (  68.31, 134.56) 01/22/2019   02:56:57  (  68.30, 134.53)    1.54                32
 01/22/2019   03:47:07   ( -68.22, -58.00) 01/22/2019   03:46:27  ( -68.20, -57.97)    2.51                40
 01/24/2019   18:22:43   ( -68.84,  82.33) 01/24/2019   18:23:54  ( -68.70,  83.24)   39.70                71
 01/24/2019   19:13:19   (  68.29,-109.65) 01/24/2019   19:13:26  (  68.31,-109.59)    2.73                 7
 01/24/2019   20:04:00   ( -68.15,  57.86) 01/24/2019   20:02:57  ( -68.15,  57.85)    0.40                63
 01/27/2019   10:39:29   ( -68.39,-161.31) 01/27/2019   10:40:29  ( -68.38,-161.27)    2.15                60
 01/27/2019   11:30:12   (  68.23,   6.21) 01/27/2019   11:29:57  (  68.21,   6.16)    3.06                15
 01/27/2019   12:20:45   ( -67.65, 174.25) 01/27/2019   12:19:34  ( -67.72, 173.23)   43.86                71
 01/30/2019   02:56:22   ( -68.33, -45.45) 01/30/2019   02:56:59  ( -68.34, -45.44)    2.05                37
 01/30/2019   03:47:06   (  68.22, 122.00) 01/30/2019   03:46:26  (  68.22, 122.06)    2.73                40