Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 1 1.  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)
 01/03/2021   02:55:44   ( -68.38, -45.41) 01/03/2021   02:56:21  ( -68.37, -45.44)    1.56                37
 01/03/2021   03:46:28   (  68.26, 122.06) 01/03/2021   03:45:48  (  68.26, 122.08)    0.96                40
 01/05/2021   18:22:04   (  68.81, -97.52) 01/05/2021   18:23:15  (  68.72, -96.77)   32.02                71
 01/05/2021   19:12:39   ( -68.34,  70.41) 01/05/2021   19:12:50  ( -68.33,  70.39)    1.77                11
 01/05/2021   20:03:23   (  68.22,-122.13) 01/05/2021   20:02:17  (  68.22,-122.10)    1.41                66
 01/08/2021   10:38:53   (  68.46,  18.71) 01/08/2021   10:39:48  (  68.44,  18.77)    2.99                55
 01/08/2021   11:29:34   ( -68.31,-173.78) 01/08/2021   11:29:19  ( -68.28,-173.79)    3.24                15
 01/08/2021   12:20:05   (  67.54,  -5.52) 01/08/2021   12:18:55  (  67.60,  -6.93)   60.26                70
 01/11/2021   02:55:46   (  68.37, 134.59) 01/11/2021   02:56:16  (  68.38, 134.58)    0.81                30
 01/11/2021   03:46:28   ( -68.28, -57.97) 01/11/2021   03:45:46  ( -68.28, -57.91)    2.45                42
 01/13/2021   18:22:03   ( -68.78,  82.51) 01/13/2021   18:23:14  ( -68.66,  83.15)   28.77                71
 01/13/2021   19:12:41   (  68.35,-109.61) 01/13/2021   19:12:44  (  68.37,-109.56)    3.54                 3
 01/13/2021   20:03:22   ( -68.19,  57.90) 01/13/2021   20:02:15  ( -68.22,  57.89)    2.86                67