Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 5 21.  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)
 05/23/2016   18:23:25   ( -68.55,  82.80) 05/23/2016   18:24:36  ( -68.53,  82.87)    4.14                71
 05/23/2016   19:14:08   (  68.36,-109.64) 05/23/2016   19:14:04  (  68.37,-109.68)    1.67                 4
 05/23/2016   20:04:48   ( -68.18,  57.90) 05/23/2016   20:03:35  ( -68.20,  57.75)    6.44                73
 05/26/2016   10:40:18   ( -68.49,-161.35) 05/26/2016   10:41:06  ( -68.50,-161.29)    2.76                48
 05/26/2016   11:31:02   (  68.36,   6.13) 05/26/2016   11:30:34  (  68.34,   6.16)    2.19                28
 05/26/2016   12:21:27   ( -67.37, 174.67) 05/26/2016   12:20:19  ( -67.39, 172.70)   84.45                68
 05/29/2016   02:06:47   (  69.42, 145.83) 05/29/2016   02:07:54  (  69.29, 147.95)   84.54                67
 05/29/2016   02:57:12   ( -68.43, -45.51) 05/29/2016   02:57:37  ( -68.46, -45.46)    3.15                25
 05/29/2016   03:47:56   (  68.30, 121.97) 05/29/2016   03:47:05  (  68.29, 121.98)    0.81                51
 05/31/2016   18:23:26   (  68.56, -97.23) 05/31/2016   18:24:37  (  68.56, -97.10)    5.27                71
 05/31/2016   19:14:06   ( -68.38,  70.34) 05/31/2016   19:14:08  ( -68.40,  70.34)    2.32                 2
 05/31/2016   20:04:49   (  68.19,-122.12) 05/31/2016   20:03:36  (  68.23,-122.22)    5.82                73
 06/03/2016   10:40:19   (  68.46,  18.68) 06/03/2016   10:41:08  (  68.48,  18.68)    2.51                49
 06/03/2016   11:31:00   ( -68.32,-173.83) 06/03/2016   11:30:39  ( -68.32,-173.87)    2.01                21
 06/03/2016   12:21:28   (  67.33,  -5.29) 06/03/2016   12:20:21  (  67.36,  -7.33)   87.51                67