Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 7 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)
 07/17/2019   02:06:01   ( -69.37, -34.18) 07/17/2019   02:07:08  ( -69.22, -32.00)   87.55                67
 07/17/2019   02:56:28   (  68.33, 134.54) 07/17/2019   02:56:49  (  68.33, 134.54)    0.62                21
 07/17/2019   03:47:09   ( -68.20, -57.98) 07/17/2019   03:46:19  ( -68.23, -57.96)    3.12                50
 07/19/2019   18:22:40   ( -68.52,  82.75) 07/19/2019   18:23:51  ( -68.49,  82.95)    9.21                71
 07/19/2019   19:13:22   (  68.28,-109.63) 07/19/2019   19:13:20  (  68.26,-109.68)    2.73                 2
 07/19/2019   20:04:03   ( -68.15,  57.85) 07/19/2019   20:02:50  ( -68.16,  57.84)    1.19                73
 07/22/2019   10:39:33   ( -68.37,-161.28) 07/22/2019   10:40:25  ( -68.37,-161.33)    2.12                52
 07/22/2019   11:30:17   (  68.24,   6.19) 07/22/2019   11:29:52  (  68.25,   6.17)    1.13                25
 07/22/2019   12:20:44   ( -67.35, 174.60) 07/22/2019   12:19:35  ( -67.43, 172.86)   75.06                69
 07/25/2019   02:06:06   (  69.48, 145.65) 07/25/2019   02:07:11  (  69.39, 148.19)   99.81                65
 07/25/2019   02:56:28   ( -68.33, -45.46) 07/25/2019   02:56:58  ( -68.35, -45.49)    2.90                30
 07/25/2019   03:47:12   (  68.20, 122.01) 07/25/2019   03:46:25  (  68.23, 122.01)    3.47                47
 07/27/2019   18:22:47   (  68.69, -97.49) 07/27/2019   18:23:59  (  68.59, -96.97)   23.86                72
 07/27/2019   19:13:24   ( -68.34,  70.30) 07/27/2019   19:13:32  ( -68.33,  70.35)    2.04                 8
 07/27/2019   20:04:07   (  68.16,-122.17) 07/27/2019   20:03:00  (  68.16,-122.22)    2.17                67