Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 4 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)
 04/20/2019   02:55:52   ( -68.62, -45.72) 04/20/2019   02:57:03  ( -68.57, -45.22)   21.30                71
 04/20/2019   03:46:31   (  68.22, 122.10) 04/20/2019   03:46:34  (  68.24, 122.03)    3.06                 3
 04/20/2019   04:37:13   ( -68.14, -70.48) 04/20/2019   04:36:04  ( -68.13, -70.47)    1.38                69
 04/22/2019   19:12:44   ( -68.34,  70.40) 04/22/2019   19:13:36  ( -68.35,  70.40)    0.99                52
 04/22/2019   20:03:28   (  68.22,-122.14) 04/22/2019   20:03:03  (  68.24,-122.08)    3.14                25
 04/22/2019   20:53:55   ( -67.32,  46.28) 04/22/2019   20:52:46  ( -67.41,  44.59)   73.22                69
 04/25/2019   10:39:15   (  69.29,  17.56) 04/25/2019   10:40:22  (  69.18,  19.68)   84.43                67
 04/25/2019   11:29:40   ( -68.29,-173.76) 04/25/2019   11:30:06  ( -68.29,-173.79)    1.41                26
 04/25/2019   12:20:24   (  68.17,  -6.30) 04/25/2019   12:19:33  (  68.18,  -6.28)    1.53                51
 04/28/2019   02:55:55   (  68.38, 134.56) 04/28/2019   02:57:05  (  68.38, 134.56)    0.55                70
 04/28/2019   03:46:37   ( -68.28, -57.99) 04/28/2019   03:46:35  ( -68.27, -57.93)    2.71                 2
 04/28/2019   04:37:17   (  67.95, 109.73) 04/28/2019   04:36:05  (  67.99, 109.38)   15.26                72
 04/30/2019   19:12:50   (  68.33,-109.61) 04/30/2019   19:13:33  (  68.34,-109.60)    1.28                43
 04/30/2019   20:03:31   ( -68.17,  57.91) 04/30/2019   20:03:04  ( -68.18,  57.84)    2.99                27