Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 5 20.  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)
 05/22/2019   02:56:07   ( -68.36, -45.46) 05/22/2019   02:57:07  ( -68.39, -45.45)    2.83                60
 05/22/2019   03:46:51   (  68.24, 122.00) 05/22/2019   03:46:35  (  68.22, 122.00)    2.19                16
 05/22/2019   04:37:23   ( -67.61, -69.89) 05/22/2019   04:36:13  ( -67.67, -71.01)   47.74                70
 05/24/2019   19:13:02   ( -68.33,  70.35) 05/24/2019   19:13:36  ( -68.30,  70.33)    2.71                34
 05/24/2019   20:03:46   (  68.21,-122.19) 05/24/2019   20:03:03  (  68.19,-122.16)    2.61                43
 05/27/2019   10:39:21   (  68.66,  18.36) 05/27/2019   10:40:31  (  68.60,  18.94)   24.48                70
 05/27/2019   11:29:58   ( -68.30,-173.84) 05/27/2019   11:30:05  ( -68.27,-173.82)    2.89                 7
 05/27/2019   12:20:41   (  68.13,  -6.32) 05/27/2019   12:19:32  (  68.16,  -6.32)    2.97                69
 05/30/2019   02:56:12   (  68.37, 134.52) 05/30/2019   02:57:03  (  68.39, 134.56)    3.15                51
 05/30/2019   03:46:53   ( -68.21, -57.97) 05/30/2019   03:46:34  ( -68.23, -57.99)    2.27                19
 05/30/2019   04:37:22   (  67.29, 110.47) 05/30/2019   04:36:14  (  67.38, 108.68)   77.52                68
 06/01/2019   19:13:07   (  68.29,-109.61) 06/01/2019   19:13:33  (  68.28,-109.68)    2.71                26
 06/01/2019   20:03:49   ( -68.19,  57.83) 06/01/2019   20:03:03  ( -68.19,  57.84)    0.34                46