Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 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)
 08/23/2019   10:39:38   ( -68.38,-161.29) 08/23/2019   10:40:14  ( -68.36,-161.32)    3.08                36
 08/23/2019   11:30:22   (  68.26,   6.18) 08/23/2019   11:29:41  (  68.26,   6.20)    0.94                41
 08/26/2019   02:05:58   (  68.83, 146.58) 08/26/2019   02:07:08  (  68.72, 147.36)   33.68                70
 08/26/2019   02:56:32   ( -68.31, -45.42) 08/26/2019   02:56:43  ( -68.33, -45.48)    3.55                11
 08/26/2019   03:47:17   (  68.24, 121.98) 08/26/2019   03:46:10  (  68.22, 122.03)    3.35                67
 08/28/2019   18:22:45   (  68.43, -97.12) 08/28/2019   18:23:40  (  68.46, -97.08)    3.29                55
 08/28/2019   19:13:26   ( -68.28,  70.39) 08/28/2019   19:13:11  ( -68.29,  70.36)    1.57                15
 08/28/2019   20:03:58   (  67.52,-121.36) 08/28/2019   20:02:49  (  67.56,-122.84)   63.44                69
 08/31/2019   10:39:39   (  68.36,  18.74) 08/31/2019   10:40:10  (  68.36,  18.69)    2.23                31
 08/31/2019   11:30:21   ( -68.26,-173.81) 08/31/2019   11:29:40  ( -68.26,-173.81)    0.68                41
 09/03/2019   02:05:56   ( -68.77, -33.34) 09/03/2019   02:07:08  ( -68.66, -32.71)   28.15                72
 09/03/2019   02:56:34   (  68.35, 134.53) 09/03/2019   02:56:39  (  68.33, 134.52)    2.31                 5
 09/03/2019   03:47:16   ( -68.24, -58.02) 09/03/2019   03:46:09  ( -68.22, -57.97)    3.10                67