Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 9 15.  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)
 09/16/2019   09:49:15   ( -69.51,-150.13) 09/16/2019   09:50:21  ( -69.45,-147.58)   99.35                66
 09/16/2019   10:39:40   (  68.38,  18.73) 09/16/2019   10:40:05  (  68.40,  18.73)    2.24                25
 09/16/2019   11:30:20   ( -68.24,-173.77) 09/16/2019   11:29:35  ( -68.24,-173.83)    2.76                45
 09/19/2019   02:05:55   ( -68.76, -33.31) 09/19/2019   02:07:06  ( -68.66, -32.73)   25.72                71
 09/19/2019   02:56:33   (  68.33, 134.58) 09/19/2019   02:56:37  (  68.33, 134.51)    2.78                 4
 09/19/2019   03:47:15   ( -68.23, -57.98) 09/19/2019   03:46:07  ( -68.23, -57.98)    0.68                68
 09/21/2019   18:22:44   ( -68.44,  82.90) 09/21/2019   18:23:43  ( -68.46,  82.88)    2.75                59
 09/21/2019   19:13:28   (  68.33,-109.65) 09/21/2019   19:13:11  (  68.30,-109.67)    3.41                17
 09/21/2019   20:04:00   ( -67.69,  58.47) 09/21/2019   20:02:49  ( -67.75,  57.32)   48.82                71
 09/24/2019   10:39:39   ( -68.44,-161.32) 09/24/2019   10:40:19  ( -68.41,-161.34)    3.30                40
 09/24/2019   11:30:22   (  68.27,   6.20) 09/24/2019   11:29:46  (  68.30,   6.18)    2.68                36
 09/27/2019   02:06:06   (  69.29, 145.98) 09/27/2019   02:07:14  (  69.15, 147.81)   73.83                68
 09/27/2019   02:56:32   ( -68.38, -45.48) 09/27/2019   02:56:55  ( -68.39, -45.52)    1.47                23
 09/27/2019   03:47:16   (  68.28, 121.97) 09/27/2019   03:46:22  (  68.28, 122.00)    1.16                54