Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 4 19.  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   02:57:04  ( -68.52, -45.28)   21.02                72
 04/20/2019   03:46:32   (  68.28, 122.03) 04/20/2019   03:46:34  (  68.25, 122.05)    2.62                 2
 04/20/2019   04:37:13   ( -68.14, -70.47) 04/20/2019   04:36:04  ( -68.13, -70.46)    0.59                69
 04/22/2019   19:12:44   ( -68.34,  70.40) 04/22/2019   19:13:37  ( -68.32,  70.36)    2.61                53
 04/22/2019   20:03:28   (  68.22,-122.14) 04/22/2019   20:03:04  (  68.22,-122.11)    0.96                24
 04/22/2019   20:53:55   ( -67.32,  46.29) 04/22/2019   20:52:47  ( -67.38,  44.55)   74.47                68
 04/25/2019   10:39:16   (  69.34,  17.49) 04/25/2019   10:40:22  (  69.24,  19.75)   89.88                66
 04/25/2019   11:29:40   ( -68.29,-173.76) 04/25/2019   11:30:07  ( -68.29,-173.80)    1.59                27
 04/25/2019   12:20:24   (  68.17,  -6.30) 04/25/2019   12:19:34  (  68.19,  -6.28)    2.32                50
 04/28/2019   02:55:55   (  68.38, 134.56) 04/28/2019   02:57:07  (  68.36, 134.53)    2.44                72
 04/28/2019   03:46:36   ( -68.23, -57.93) 04/28/2019   03:46:37  ( -68.25, -57.97)    2.80                 1
 04/28/2019   04:37:18   (  68.01, 109.66) 04/28/2019   04:36:06  (  68.03, 109.42)   10.46                72
 04/30/2019   19:12:50   (  68.33,-109.61) 04/30/2019   19:13:36  (  68.32,-109.65)    2.42                46
 04/30/2019   20:03:32   ( -68.23,  57.83) 04/30/2019   20:03:06  ( -68.21,  57.86)    2.97                26
 04/30/2019   20:53:57   (  67.09,-133.47) 04/30/2019   20:52:50  (  67.14,-135.71)   96.90                67