Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 5 13.  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)
 05/14/2019   02:56:04   (  68.36, 134.55) 05/14/2019   02:57:07  (  68.36, 134.52)    0.95                63
 05/14/2019   03:46:46   ( -68.27, -58.02) 05/14/2019   03:46:37  ( -68.25, -57.98)    3.08                 9
 05/14/2019   04:37:22   (  67.72, 109.98) 05/14/2019   04:36:11  (  67.75, 109.09)   38.03                71
 05/16/2019   19:13:00   (  68.33,-109.64) 05/16/2019   19:13:36  (  68.34,-109.62)    1.95                36
 05/16/2019   20:03:40   ( -68.18,  57.87) 05/16/2019   20:03:06  ( -68.18,  57.82)    2.11                34
 05/19/2019   10:39:20   ( -68.89,-161.93) 05/19/2019   10:40:30  ( -68.81,-160.80)   45.85                70
 05/19/2019   11:29:55   (  68.29,   6.17) 05/19/2019   11:30:04  (  68.31,   6.23)    3.21                 9
 05/19/2019   12:20:36   ( -68.14, 173.68) 05/19/2019   12:19:35  ( -68.15, 173.67)    0.93                61
 05/22/2019   02:56:07   ( -68.38, -45.48) 05/22/2019   02:57:06  ( -68.39, -45.45)    2.24                59
 05/22/2019   03:46:50   (  68.21, 122.05) 05/22/2019   03:46:34  (  68.22, 121.99)    2.44                16
 05/22/2019   04:37:23   ( -67.63, -69.91) 05/22/2019   04:36:12  ( -67.67, -71.01)   46.74                71
 05/24/2019   19:13:03   ( -68.34,  70.33) 05/24/2019   19:13:35  ( -68.35,  70.38)    2.19                32
 05/24/2019   20:03:46   (  68.18,-122.15) 05/24/2019   20:03:03  (  68.17,-122.18)    1.52                43