Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 8 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)
 08/20/2019   18:22:43   ( -68.42,  82.89) 08/20/2019   18:23:44  ( -68.44,  82.90)    2.15                61
 08/20/2019   19:13:27   (  68.29,-109.64) 08/20/2019   19:13:12  (  68.28,-109.65)    1.38                15
 08/20/2019   20:04:00   ( -67.73,  58.39) 08/20/2019   20:02:49  ( -67.77,  57.39)   42.53                71
 08/23/2019   10:39:38   ( -68.40,-161.30) 08/23/2019   10:40:13  ( -68.40,-161.27)    1.60                35
 08/23/2019   11:30:21   (  68.22,   6.23) 08/23/2019   11:29:41  (  68.24,   6.18)    3.18                40
 08/26/2019   02:05:57   (  68.79, 146.63) 08/26/2019   02:07:08  (  68.70, 147.34)   30.12                71
 08/26/2019   02:56:33   ( -68.37, -45.50) 08/26/2019   02:56:42  ( -68.36, -45.44)    2.82                 9
 08/26/2019   03:47:16   (  68.20, 122.03) 08/26/2019   03:46:10  (  68.20, 122.01)    0.85                66
 08/28/2019   18:22:46   (  68.45, -97.14) 08/28/2019   18:23:41  (  68.42, -97.11)    2.91                55
 08/28/2019   19:13:27   ( -68.30,  70.37) 08/28/2019   19:13:11  ( -68.32,  70.39)    2.14                16
 08/28/2019   20:03:59   (  67.54,-121.38) 08/28/2019   20:02:49  (  67.59,-122.81)   61.31                70
 08/31/2019   10:39:39   (  68.38,  18.72) 08/31/2019   10:40:09  (  68.37,  18.70)    1.06                30
 08/31/2019   11:30:21   ( -68.28,-173.84) 08/31/2019   11:29:39  ( -68.27,-173.79)    2.46                42
 09/03/2019   02:05:55   ( -68.74, -33.30) 09/03/2019   02:07:07  ( -68.66, -32.71)   25.34                72
 09/03/2019   02:56:33   (  68.32, 134.57) 09/03/2019   02:56:38  (  68.32, 134.52)    2.31                 5