Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 2 23.  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)
 02/23/2019   02:56:12   (  68.33, 134.56) 02/23/2019   02:56:53  (  68.34, 134.55)    0.54                41
 02/23/2019   03:46:53   ( -68.21, -57.96) 02/23/2019   03:46:23  ( -68.23, -57.95)    2.14                30
 02/25/2019   18:22:35   ( -69.17,  81.90) 02/25/2019   18:23:43  ( -69.09,  83.72)   72.72                68
 02/25/2019   19:13:05   (  68.29,-109.61) 02/25/2019   19:13:22  (  68.31,-109.60)    2.57                17
 02/25/2019   20:03:46   ( -68.16,  57.87) 02/25/2019   20:02:53  ( -68.15,  57.84)    1.81                53
 02/28/2019   10:39:14   ( -68.38,-161.26) 02/28/2019   10:40:24  ( -68.39,-161.27)    1.46                70
 02/28/2019   11:29:58   (  68.25,   6.22) 02/28/2019   11:29:51  (  68.28,   6.24)    3.19                 7
 02/28/2019   12:20:36   ( -67.96, 173.91) 02/28/2019   12:19:24  ( -68.01, 173.55)   15.66                72
 03/03/2019   02:56:07   ( -68.34, -45.43) 03/03/2019   02:56:53  ( -68.35, -45.44)    1.16                46
 03/03/2019   03:46:50   (  68.21, 122.05) 03/03/2019   03:46:19  (  68.23, 122.06)    2.14                31
 03/03/2019   04:37:13   ( -67.11, -69.29) 03/03/2019   04:36:06  ( -67.18, -71.50)   95.65                67
 03/05/2019   18:22:31   (  69.13, -98.03) 03/05/2019   18:23:39  (  69.05, -96.31)   68.58                68
 03/05/2019   19:12:59   ( -68.30,  70.40) 03/05/2019   19:13:21  ( -68.29,  70.37)    1.60                22
 03/05/2019   20:03:43   (  68.17,-122.13) 03/05/2019   20:02:48  (  68.17,-122.13)    0.57                55
 03/08/2019   10:39:11   (  68.40,  18.73) 03/08/2019   10:40:19  (  68.37,  18.72)    3.14                68
 03/08/2019   11:29:52   ( -68.26,-173.77) 03/08/2019   11:29:49  ( -68.27,-173.76)    1.54                 3
 03/08/2019   12:20:32   (  67.92,  -6.04) 03/08/2019   12:19:19  (  67.98,  -6.47)   19.18                73