Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 9 14.  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)
 09/15/2020   18:22:34   (  68.49, -97.16) 09/15/2020   18:23:45  (  68.48, -97.00)    6.49                71
 09/15/2020   19:13:14   ( -68.30,  70.42) 09/15/2020   19:13:16  ( -68.32,  70.43)    2.38                 2
 09/15/2020   20:03:57   (  68.12,-122.06) 09/15/2020   20:02:44  (  68.15,-122.12)    4.47                73
 09/18/2020   10:39:28   (  68.39,  18.75) 09/18/2020   10:40:15  (  68.41,  18.79)    2.94                47
 09/18/2020   11:30:09   ( -68.24,-173.74) 09/18/2020   11:29:46  ( -68.25,-173.78)    1.65                23
 09/18/2020   12:20:36   (  67.20,  -5.17) 09/18/2020   12:19:29  (  67.24,  -7.29)   91.38                67
 09/21/2020   02:05:55   ( -69.36, -34.10) 09/21/2020   02:07:02  ( -69.28, -31.88)   87.84                67
 09/21/2020   02:56:22   (  68.34, 134.58) 09/21/2020   02:56:44  (  68.34, 134.58)    0.32                22
 09/21/2020   03:47:04   ( -68.24, -57.97) 09/21/2020   03:46:14  ( -68.23, -57.91)    2.51                50
 09/23/2020   18:22:34   ( -68.45,  82.90) 09/23/2020   18:23:46  ( -68.44,  82.93)    2.07                72
 09/23/2020   19:13:17   (  68.29,-109.58) 09/23/2020   19:13:13  (  68.32,-109.56)    3.37                 4
 09/23/2020   20:03:58   ( -68.13,  57.93) 09/23/2020   20:02:44  ( -68.16,  57.88)    3.87                74
 09/26/2020   10:39:29   ( -68.40,-161.27) 09/26/2020   10:40:15  ( -68.42,-161.20)    3.52                46
 09/26/2020   11:30:12   (  68.24,   6.25) 09/26/2020   11:29:43  (  68.24,   6.23)    1.00                29
 09/26/2020   12:20:36   ( -67.17, 174.88) 09/26/2020   12:19:29  ( -67.26, 172.73)   93.18                67