Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 9 28.  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)
 09/29/2020   02:05:56   (  69.36, 145.99) 09/29/2020   02:07:03  (  69.23, 148.05)   81.99                67
 09/29/2020   02:56:22   ( -68.41, -45.41) 09/29/2020   02:56:46  ( -68.39, -45.37)    2.14                24
 09/29/2020   03:47:05   (  68.24, 122.12) 09/29/2020   03:46:14  (  68.23, 122.08)    1.91                51
 10/01/2020   18:22:33   (  68.48, -97.06) 10/01/2020   18:23:44  (  68.50, -96.99)    3.32                71
 10/01/2020   19:13:14   ( -68.34,  70.45) 10/01/2020   19:13:15  ( -68.34,  70.44)    0.46                 1
 10/01/2020   20:03:56   (  68.11,-121.96) 10/01/2020   20:02:43  (  68.17,-122.11)    9.12                73
 10/04/2020   10:39:26   (  68.42,  18.80) 10/04/2020   10:40:14  (  68.44,  18.81)    2.24                48
 10/04/2020   11:30:07   ( -68.27,-173.69) 10/04/2020   11:29:45  ( -68.28,-173.75)    2.54                22
 10/04/2020   12:20:34   (  67.24,  -5.12) 10/04/2020   12:19:27  (  67.32,  -7.20)   89.94                67
 10/07/2020   02:05:54   ( -69.48, -34.19) 10/07/2020   02:07:01  ( -69.37, -31.77)   95.30                67
 10/07/2020   02:56:19   (  68.36, 134.65) 10/07/2020   02:56:44  (  68.37, 134.60)    2.16                25
 10/07/2020   03:47:01   ( -68.26, -57.91) 10/07/2020   03:46:14  ( -68.27, -57.88)    1.71                47
 10/09/2020   18:22:33   ( -68.67,  82.69) 10/09/2020   18:23:44  ( -68.58,  83.10)   19.33                71
 10/09/2020   19:13:13   (  68.35,-109.58) 10/09/2020   19:13:13  (  68.35,-109.54)    1.59                 0
 10/09/2020   20:03:54   ( -68.20,  57.93) 10/09/2020   20:02:44  ( -68.20,  57.91)    0.96                70