Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 5 16.  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)
 05/16/2019   19:12:59   (  68.31,-109.62) 05/16/2019   19:13:36  (  68.32,-109.65)    1.43                37
 05/16/2019   20:03:41   ( -68.22,  57.82) 05/16/2019   20:03:06  ( -68.20,  57.85)    2.34                35
 05/19/2019   10:39:21   ( -68.93,-161.98) 05/19/2019   10:40:31  ( -68.80,-160.82)   48.73                70
 05/19/2019   11:29:55   (  68.28,   6.19) 05/19/2019   11:30:05  (  68.30,   6.21)    2.43                10
 05/19/2019   12:20:36   ( -68.13, 173.69) 05/19/2019   12:19:36  ( -68.13, 173.65)    2.01                60
 05/22/2019   02:56:07   ( -68.36, -45.46) 05/22/2019   02:57:07  ( -68.39, -45.45)    3.22                60
 05/22/2019   03:46:51   (  68.25, 122.00) 05/22/2019   03:46:35  (  68.22, 122.00)    2.90                16
 05/22/2019   04:37:23   ( -67.61, -69.90) 05/22/2019   04:36:13  ( -67.67, -71.01)   47.50                70
 05/24/2019   19:13:02   ( -68.33,  70.34) 05/24/2019   19:13:36  ( -68.31,  70.34)    2.10                34
 05/24/2019   20:03:46   (  68.22,-122.20) 05/24/2019   20:03:03  (  68.20,-122.15)    3.30                43
 05/27/2019   10:39:21   (  68.67,  18.35) 05/27/2019   10:40:31  (  68.61,  18.95)   25.44                70
 05/27/2019   11:29:58   ( -68.30,-173.85) 05/27/2019   11:30:05  ( -68.29,-173.81)    2.59                 7
 05/27/2019   12:20:41   (  68.14,  -6.33) 05/27/2019   12:19:32  (  68.17,  -6.31)    3.13                69
 05/30/2019   02:56:12   (  68.38, 134.50) 05/30/2019   02:57:04  (  68.35, 134.52)    3.33                52
 05/30/2019   03:46:53   ( -68.23, -57.98) 05/30/2019   03:46:34  ( -68.26, -57.97)    3.46                19
 05/30/2019   04:37:23   (  67.36, 110.39) 05/30/2019   04:36:14  (  67.40, 108.70)   72.63                69