Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 7 20.  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)
 07/22/2019   10:39:33   ( -68.37,-161.28) 07/22/2019   10:40:20  ( -68.36,-161.32)    1.70                47
 07/22/2019   11:30:17   (  68.23,   6.20) 07/22/2019   11:29:47  (  68.25,   6.19)    1.89                30
 07/22/2019   12:20:41   ( -67.19, 174.79) 07/22/2019   12:19:34  ( -67.19, 172.62)   93.67                67
 07/25/2019   02:06:00   (  69.15, 146.11) 07/25/2019   02:07:08  (  69.09, 147.83)   68.28                68
 07/25/2019   02:56:28   ( -68.33, -45.46) 07/25/2019   02:56:50  ( -68.31, -45.50)    2.36                22
 07/25/2019   03:47:12   (  68.19, 122.02) 07/25/2019   03:46:17  (  68.20, 122.01)    0.89                55
 07/27/2019   18:22:42   (  68.42, -97.12) 07/27/2019   18:23:49  (  68.42, -97.13)    0.33                67
 07/27/2019   19:13:23   ( -68.28,  70.37) 07/27/2019   19:13:20  ( -68.26,  70.31)    3.29                 3
 07/27/2019   20:04:02   (  67.88,-121.82) 07/27/2019   20:02:50  (  67.98,-122.38)   25.53                72
 07/30/2019   10:39:36   (  68.38,  18.70) 07/30/2019   10:40:18  (  68.36,  18.68)    1.89                42
 07/30/2019   11:30:17   ( -68.24,-173.81) 07/30/2019   11:29:48  ( -68.27,-173.81)    2.53                29
 08/02/2019   02:06:01   ( -69.21, -33.96) 08/02/2019   02:07:09  ( -69.09, -32.18)   71.79                68
 08/02/2019   02:56:31   (  68.34, 134.52) 08/02/2019   02:56:47  (  68.36, 134.56)    2.72                16
 08/02/2019   03:47:12   ( -68.20, -57.98) 08/02/2019   03:46:18  ( -68.21, -57.99)    0.93                54