Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 1 15.  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)
 01/16/2016   17:33:39   (  68.63, -84.61) 01/16/2016   17:34:51  (  68.61, -84.63)    1.67                72
 01/16/2016   18:24:20   ( -68.51,  82.87) 01/16/2016   18:24:21  ( -68.51,  82.88)    0.27                 1
 01/16/2016   19:15:02   (  68.26,-109.51) 01/16/2016   19:13:50  (  68.28,-109.75)   10.33                72
 01/19/2016   09:50:31   (  68.59,  31.22) 01/19/2016   09:51:21  (  68.57,  31.19)    2.78                50
 01/19/2016   10:41:12   ( -68.47,-161.30) 01/19/2016   10:40:51  ( -68.46,-161.30)    0.62                21
 01/19/2016   11:31:40   (  67.47,   7.25) 01/19/2016   11:30:33  (  67.51,   5.23)   86.11                67
 01/22/2016   02:07:23   (  68.56, 147.03) 01/22/2016   02:07:50  (  68.56, 147.07)    1.33                27
 01/22/2016   02:58:03   ( -68.43, -45.48) 01/22/2016   02:57:20  ( -68.40, -45.49)    3.31                43
 01/24/2016   17:33:36   ( -68.98,  94.94) 01/24/2016   17:34:47  ( -68.88,  95.70)   32.26                71
 01/24/2016   18:24:13   (  68.47, -97.08) 01/24/2016   18:24:19  (  68.49, -97.15)    3.08                 6
 01/24/2016   19:14:55   ( -68.40,  70.33) 01/24/2016   19:13:49  ( -68.38,  70.36)    2.10                66
 01/27/2016   09:50:21   ( -68.58,-148.75) 01/27/2016   09:51:21  ( -68.57,-148.81)    2.64                60
 01/27/2016   10:41:05   (  68.45,  18.73) 01/27/2016   10:40:48  (  68.45,  18.69)    1.69                17
 01/27/2016   11:31:37   ( -67.83,-173.18) 01/27/2016   11:30:26  ( -67.91,-174.32)   48.75                71