Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 12 12.  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)
 12/12/2020   18:22:06   ( -69.30,  81.86) 12/12/2020   18:23:14  ( -69.21,  83.87)   80.00                68
 12/12/2020   19:12:35   (  68.36,-109.57) 12/12/2020   19:12:54  (  68.38,-109.52)    2.81                19
 12/12/2020   20:03:16   ( -68.24,  57.91) 12/12/2020   20:02:25  ( -68.21,  57.91)    2.56                51
 12/15/2020   10:38:46   ( -68.44,-161.22) 12/15/2020   10:39:55  ( -68.45,-161.20)    0.74                69
 12/15/2020   11:29:30   (  68.31,   6.26) 12/15/2020   11:29:22  (  68.34,   6.31)    3.36                 8
 12/15/2020   12:20:08   ( -68.02, 173.95) 12/15/2020   12:18:55  ( -68.06, 173.61)   14.82                73
 12/18/2020   02:55:41   ( -68.39, -45.38) 12/18/2020   02:56:23  ( -68.40, -45.38)    1.15                42
 12/18/2020   03:46:25   (  68.26, 122.09) 12/18/2020   03:45:50  (  68.29, 122.13)    3.07                35
 12/20/2020   18:22:04   (  68.96, -97.70) 12/20/2020   18:23:14  (  68.84, -96.59)   46.52                70
 12/20/2020   19:12:35   ( -68.34,  70.45) 12/20/2020   19:12:50  ( -68.35,  70.44)    0.85                15
 12/20/2020   20:03:19   (  68.21,-122.09) 12/20/2020   20:02:17  (  68.23,-122.06)    1.88                62
 12/23/2020   10:38:49   (  68.43,  18.77) 12/23/2020   10:39:47  (  68.44,  18.81)    1.66                58
 12/23/2020   11:29:30   ( -68.29,-173.72) 12/23/2020   11:29:18  ( -68.28,-173.75)    1.19                12
 12/23/2020   12:20:04   (  67.63,  -5.59) 12/23/2020   12:18:54  (  67.66,  -6.83)   52.52                70
 12/26/2020   02:55:44   (  68.39, 134.59) 12/26/2020   02:56:15  (  68.37, 134.61)    2.37                31