Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 3 22.  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)
 03/23/2017   19:12:46   (  68.31,-109.54) 03/23/2017   19:13:20  (  68.33,-109.58)    2.44                34
 03/23/2017   20:03:28   ( -68.22,  57.89) 03/23/2017   20:02:50  ( -68.23,  57.93)    1.45                38
 03/26/2017   10:39:05   ( -68.97,-161.94) 03/26/2017   10:40:15  ( -68.85,-160.70)   50.98                70
 03/26/2017   11:29:38   (  68.27,   6.30) 03/26/2017   11:29:50  (  68.29,   6.25)    3.30                12
 03/26/2017   12:20:20   ( -68.17, 173.74) 03/26/2017   12:19:20  ( -68.19, 173.77)    2.18                60
 03/29/2017   02:55:46   ( -68.39, -45.38) 03/29/2017   02:56:52  ( -68.37, -45.41)    1.91                66
 03/29/2017   03:46:30   (  68.28, 122.07) 03/29/2017   03:46:19  (  68.25, 122.09)    2.75                11
 03/29/2017   04:37:06   ( -67.86, -70.09) 03/29/2017   04:35:54  ( -67.88, -70.72)   26.80                72
 03/31/2017   19:12:38   ( -68.34,  70.46) 03/31/2017   19:13:22  ( -68.34,  70.42)    1.38                44
 03/31/2017   20:03:22   (  68.24,-122.10) 03/31/2017   20:02:49  (  68.22,-122.08)    2.27                33
 04/03/2017   10:39:02   (  69.16,  17.83) 04/03/2017   10:40:10  (  69.07,  19.58)   70.19                68
 04/03/2017   11:29:30   ( -68.30,-173.71) 04/03/2017   11:29:52  ( -68.31,-173.74)    1.45                22
 04/03/2017   12:20:14   (  68.20,  -6.27) 04/03/2017   12:19:19  (  68.18,  -6.24)    2.16                55