Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 12 25.  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)
 12/26/2019   18:22:13   ( -68.98,  82.26) 12/26/2019   18:23:23  ( -68.87,  83.46)   49.33                70
 12/26/2019   19:12:47   (  68.32,-109.56) 12/26/2019   19:12:58  (  68.33,-109.57)    0.88                11
 12/26/2019   20:03:28   ( -68.18,  57.94) 12/26/2019   20:02:28  ( -68.21,  57.93)    3.28                60
 12/29/2019   10:38:56   ( -68.42,-161.22) 12/29/2019   10:40:00  ( -68.42,-161.21)    0.42                64
 12/29/2019   11:29:39   (  68.25,   6.31) 12/29/2019   11:29:28  (  68.26,   6.24)    3.05                11
 12/29/2019   12:20:15   ( -67.84, 174.14) 12/29/2019   12:19:03  ( -67.87, 173.41)   30.76                72
 01/01/2020   02:55:47   ( -68.35, -45.36) 01/01/2020   02:56:29  ( -68.36, -45.41)    2.33                42
 01/01/2020   03:46:31   (  68.24, 122.10) 01/01/2020   03:45:56  (  68.25, 122.10)    1.20                35
 01/03/2020   18:22:10   (  69.08, -97.87) 01/03/2020   18:23:19  (  68.95, -96.43)   59.03                69
 01/03/2020   19:12:40   ( -68.34,  70.44) 01/03/2020   19:12:58  ( -68.34,  70.45)    0.85                18
 01/03/2020   20:03:23   (  68.17,-122.04) 01/03/2020   20:02:26  (  68.18,-122.10)    2.52                57
 01/06/2020   10:38:51   (  68.42,  18.79) 01/06/2020   10:39:57  (  68.43,  18.81)    1.09                66
 01/06/2020   11:29:32   ( -68.27,-173.70) 01/06/2020   11:29:28  ( -68.27,-173.75)    2.35                 4
 01/06/2020   12:20:11   (  67.89,  -5.91) 01/06/2020   12:18:59  (  67.93,  -6.51)   25.20                72