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   ( -68.36,-161.27) 07/22/2019   10:40:20  ( -68.38,-161.30)    1.87                47
 07/22/2019   11:30:17   (  68.23,   6.21) 07/22/2019   11:29:48  (  68.21,   6.14)    3.32                29
 07/22/2019   12:20:41   ( -67.18, 174.80) 07/22/2019   12:19:34  ( -67.21, 172.64)   93.37                67
 07/25/2019   02:06:01   (  69.20, 146.05) 07/25/2019   02:07:09  (  69.05, 147.79)   70.84                68
 07/25/2019   02:56:28   ( -68.32, -45.45) 07/25/2019   02:56:50  ( -68.34, -45.47)    2.14                22
 07/25/2019   03:47:12   (  68.19, 122.03) 07/25/2019   03:46:18  (  68.17, 121.97)    3.41                54
 07/27/2019   18:22:41   (  68.42, -97.12) 07/27/2019   18:23:49  (  68.40, -97.15)    2.06                68
 07/27/2019   19:13:22   ( -68.28,  70.38) 07/27/2019   19:13:19  ( -68.30,  70.36)    2.36                 3
 07/27/2019   20:04:02   (  67.94,-121.88) 07/27/2019   20:02:50  (  67.96,-122.40)   21.73                72
 07/30/2019   10:39:36   (  68.38,  18.70) 07/30/2019   10:40:19  (  68.36,  18.68)    2.01                43
 07/30/2019   11:30:17   ( -68.24,-173.80) 07/30/2019   11:29:49  ( -68.27,-173.81)    2.65                28
 08/02/2019   02:06:02   ( -69.27, -34.04) 08/02/2019   02:07:10  ( -69.12, -32.15)   76.44                68
 08/02/2019   02:56:31   (  68.35, 134.51) 08/02/2019   02:56:49  (  68.33, 134.51)    2.14                18
 08/02/2019   03:47:12   ( -68.21, -57.99) 08/02/2019   03:46:19  ( -68.23, -57.97)    3.10                53