Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 10 19.  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)
 10/20/2015   16:44:00   (  69.44, -72.95) 10/20/2015   16:45:09  (  69.33, -71.34)   64.28                69
 10/20/2015   17:34:29   ( -68.67,  95.43) 10/20/2015   17:34:49  ( -68.66,  95.45)    0.92                20
 10/20/2015   18:25:13   (  68.54, -97.09) 10/20/2015   18:24:16  (  68.56, -97.04)    2.62                57
 10/23/2015   09:00:41   (  68.78,  43.73) 10/23/2015   09:01:50  (  68.76,  43.81)    3.39                69
 10/23/2015   09:51:21   ( -68.59,-148.70) 10/23/2015   09:51:21  ( -68.60,-148.76)    2.91                 0
 10/23/2015   10:42:03   (  68.36,  18.91) 10/23/2015   10:40:50  (  68.38,  18.61)   12.59                73
 10/26/2015   01:17:33   (  68.71, 159.59) 10/26/2015   01:18:22  (  68.69, 159.58)    2.88                49
 10/26/2015   02:08:14   ( -68.57, -32.90) 10/26/2015   02:07:52  ( -68.58, -32.91)    1.49                22
 10/26/2015   02:58:41   (  67.53, 135.71) 10/26/2015   02:57:34  (  67.63, 133.61)   89.77                67
 10/28/2015   17:34:25   (  68.65, -84.55) 10/28/2015   17:34:53  (  68.65, -84.59)    1.71                28
 10/28/2015   18:25:07   ( -68.56,  82.89) 10/28/2015   18:24:23  ( -68.55,  82.92)    1.39                44
 10/31/2015   09:00:40   ( -69.12,-136.74) 10/31/2015   09:01:51  ( -68.99,-135.93)   35.11                71
 10/31/2015   09:51:17   (  68.64,  31.22) 10/31/2015   09:51:22  (  68.65,  31.28)    2.77                 5
 10/31/2015   10:41:58   ( -68.49,-161.26) 10/31/2015   10:40:53  ( -68.50,-161.27)    0.95                65