Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 12 4.  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)
 12/04/2020   18:22:12   (  69.27, -98.12) 12/04/2020   18:23:19  (  69.16, -96.19)   77.03                67
 12/04/2020   19:12:38   ( -68.35,  70.45) 12/04/2020   19:13:02  ( -68.33,  70.40)    2.82                24
 12/04/2020   20:03:22   (  68.21,-122.07) 12/04/2020   20:02:29  (  68.22,-122.09)    1.25                53
 12/07/2020   10:38:48   (  68.42,  18.82) 12/07/2020   10:39:59  (  68.41,  18.75)    2.71                71
 12/07/2020   11:29:29   ( -68.29,-173.70) 12/07/2020   11:29:29  ( -68.31,-173.74)    2.76                 0
 12/07/2020   12:20:11   (  68.05,  -6.09) 12/07/2020   12:18:58  (  68.08,  -6.37)   12.22                73
 12/10/2020   02:55:40   (  68.37, 134.66) 12/10/2020   02:56:27  (  68.38, 134.59)    3.11                47
 12/10/2020   03:46:22   ( -68.29, -57.92) 12/10/2020   03:45:57  ( -68.28, -57.90)    1.65                25
 12/10/2020   04:36:47   (  67.13, 110.80) 12/10/2020   04:35:41  (  67.20, 108.52)   98.47                66
 12/12/2020   18:22:06   ( -69.40,  81.72) 12/12/2020   18:23:13  ( -69.29,  83.98)   89.29                67
 12/12/2020   19:12:32   (  68.32,-109.50) 12/12/2020   19:12:55  (  68.34,-109.57)    3.62                23
 12/12/2020   20:03:14   ( -68.24,  57.92) 12/12/2020   20:02:25  ( -68.24,  57.94)    0.71                49
 12/15/2020   10:38:43   ( -68.56,-161.34) 12/15/2020   10:39:54  ( -68.52,-161.11)   10.02                71
 12/15/2020   11:29:25   (  68.33,   6.26) 12/15/2020   11:29:22  (  68.35,   6.32)    2.99                 3
 12/15/2020   12:20:06   ( -68.19, 173.76) 12/15/2020   12:18:53  ( -68.19, 173.77)    0.33                73