Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 9 29.  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)
 09/29/2019   18:22:45   (  68.49, -97.07) 09/29/2019   18:23:34  (  68.49, -97.06)    0.30                49
 09/29/2019   19:13:26   ( -68.35,  70.43) 09/29/2019   19:13:04  ( -68.37,  70.43)    2.89                22
 09/29/2019   20:03:54   (  67.36,-121.04) 09/29/2019   20:02:46  (  67.43,-123.02)   84.77                68
 10/02/2019   09:49:14   ( -69.58,-150.11) 10/02/2019   09:50:20  ( -69.48,-147.56)   99.74                66
 10/02/2019   10:39:39   (  68.45,  18.75) 10/02/2019   10:40:04  (  68.43,  18.74)    1.91                25
 10/02/2019   11:30:20   ( -68.31,-173.75) 10/02/2019   11:29:34  ( -68.32,-173.75)    1.88                46
 10/05/2019   02:05:52   ( -68.74, -33.18) 10/05/2019   02:07:03  ( -68.65, -32.75)   19.88                71
 10/05/2019   02:56:32   (  68.41, 134.56) 10/05/2019   02:56:32  (  68.43, 134.62)    3.08                 0
 10/05/2019   03:47:13   ( -68.27, -57.93) 10/05/2019   03:46:03  ( -68.27, -57.94)    0.49                70
 10/07/2019   18:22:42   ( -68.49,  82.92) 10/07/2019   18:23:35  ( -68.49,  82.92)    0.50                53
 10/07/2019   19:13:26   (  68.38,-109.62) 10/07/2019   19:13:02  (  68.37,-109.58)    1.97                24
 10/07/2019   20:03:54   ( -67.53,  58.75) 10/07/2019   20:02:45  ( -67.54,  57.09)   70.36                69
 10/10/2019   09:49:13   (  69.56,  29.89) 10/10/2019   09:50:19  (  69.41,  32.34)   96.98                66
 10/10/2019   10:39:36   ( -68.45,-161.27) 10/10/2019   10:40:05  ( -68.42,-161.28)    3.23                29
 10/10/2019   11:30:19   (  68.29,   6.26) 10/10/2019   11:29:32  (  68.30,   6.22)    2.50                47
 10/13/2019   02:05:51   (  68.68, 146.89) 10/13/2019   02:07:02  (  68.62, 147.21)   14.19                71
 10/13/2019   02:56:30   ( -68.42, -45.46) 10/13/2019   02:56:34  ( -68.42, -45.41)    1.70                 4
 10/13/2019   03:47:13   (  68.25, 122.07) 10/13/2019   03:46:02  (  68.24, 122.02)    2.72                71