Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 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)
 08/22/2017   19:13:14   ( -68.37,  70.35) 08/22/2017   19:13:48  ( -68.38,  70.35)    1.28                34
 08/22/2017   20:03:58   (  68.25,-122.18) 08/22/2017   20:03:15  (  68.27,-122.13)    2.96                43
 08/25/2017   10:39:34   (  68.71,  18.35) 08/25/2017   10:40:45  (  68.61,  18.88)   24.35                71
 08/25/2017   11:30:11   ( -68.35,-173.85) 08/25/2017   11:30:18  ( -68.34,-173.82)    1.78                 7
 08/25/2017   12:20:54   (  68.18,  -6.33) 08/25/2017   12:19:46  (  68.17,  -6.38)    2.20                68
 08/28/2017   02:56:25   (  68.43, 134.49) 08/28/2017   02:57:16  (  68.44, 134.55)    2.96                51
 08/28/2017   03:47:06   ( -68.28, -58.00) 08/28/2017   03:46:47  ( -68.28, -58.01)    0.93                19
 08/28/2017   04:37:35   (  67.35, 110.45) 08/28/2017   04:36:27  (  67.44, 108.66)   77.14                68
 08/30/2017   18:22:56   ( -69.48,  81.50) 08/30/2017   18:24:02  ( -69.43,  84.04)   99.24                66
 08/30/2017   19:13:21   (  68.36,-109.66) 08/30/2017   19:13:46  (  68.37,-109.66)    1.08                25
 08/30/2017   20:04:03   ( -68.26,  57.79) 08/30/2017   20:03:16  ( -68.27,  57.85)    2.79                47
 09/02/2017   10:39:36   ( -68.56,-161.47) 09/02/2017   10:40:47  ( -68.51,-161.25)   10.44                71
 09/02/2017   11:30:18   (  68.35,   6.12) 09/02/2017   11:30:15  (  68.34,   6.18)    2.63                 3
 09/02/2017   12:20:59   ( -68.19, 173.64) 09/02/2017   12:19:46  ( -68.18, 173.63)    1.01                73