Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 10 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)
 10/21/2019   02:05:49   ( -68.78, -33.26) 10/21/2019   02:07:01  ( -68.68, -32.72)   24.18                72
 10/21/2019   02:56:28   (  68.39, 134.57) 10/21/2019   02:56:31  (  68.41, 134.58)    2.23                 3
 10/21/2019   03:47:09   ( -68.25, -57.94) 10/21/2019   03:46:02  ( -68.25, -57.98)    1.86                67
 10/23/2019   18:22:38   ( -68.49,  82.89) 10/23/2019   18:23:35  ( -68.47,  82.88)    2.74                57
 10/23/2019   19:13:22   (  68.37,-109.64) 10/23/2019   19:13:02  (  68.35,-109.61)    1.80                20
 10/23/2019   20:03:52   ( -67.64,  58.59) 10/23/2019   20:02:42  ( -67.69,  57.25)   56.92                70
 10/26/2019   10:39:31   ( -68.47,-161.31) 10/26/2019   10:40:05  ( -68.46,-161.26)    2.85                34
 10/26/2019   11:30:14   (  68.29,   6.22) 10/26/2019   11:29:33  (  68.28,   6.17)    2.61                41
 10/29/2019   02:05:51   (  68.97, 146.47) 10/29/2019   02:07:01  (  68.85, 147.46)   41.79                70
 10/29/2019   02:56:24   ( -68.40, -45.45) 10/29/2019   02:56:37  ( -68.43, -45.43)    2.87                13
 10/29/2019   03:47:08   (  68.28, 122.01) 10/29/2019   03:46:04  (  68.30, 122.07)    3.50                64
 10/31/2019   18:22:36   (  68.48, -97.10) 10/31/2019   18:23:40  (  68.47, -97.15)    2.34                64
 10/31/2019   19:13:18   ( -68.39,  70.33) 10/31/2019   19:13:10  ( -68.38,  70.38)    2.03                 8
 10/31/2019   20:03:54   (  67.84,-121.66) 10/31/2019   20:02:43  (  67.92,-122.53)   37.31                71