Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 12 31.  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)
 12/31/2020   10:38:49   ( -68.43,-161.23) 12/31/2020   10:39:52  ( -68.40,-161.28)    3.33                63
 12/31/2020   11:29:33   (  68.30,   6.24) 12/31/2020   11:29:19  (  68.30,   6.24)    0.50                14
 12/31/2020   12:20:07   ( -67.79, 174.20) 12/31/2020   12:18:55  ( -67.85, 173.35)   36.51                72
 01/03/2021   02:55:44   ( -68.39, -45.42) 01/03/2021   02:56:21  ( -68.37, -45.45)    2.77                37
 01/03/2021   03:46:28   (  68.26, 122.05) 01/03/2021   03:45:48  (  68.25, 122.07)    1.29                40
 01/05/2021   18:22:04   (  68.82, -97.54) 01/05/2021   18:23:15  (  68.71, -96.78)   32.74                71
 01/05/2021   19:12:39   ( -68.35,  70.40) 01/05/2021   19:12:50  ( -68.32,  70.38)    3.23                11
 01/05/2021   20:03:23   (  68.23,-122.14) 01/05/2021   20:02:17  (  68.21,-122.11)    2.92                66
 01/08/2021   10:38:52   (  68.41,  18.77) 01/08/2021   10:39:48  (  68.43,  18.76)    2.30                56
 01/08/2021   11:29:34   ( -68.32,-173.79) 01/08/2021   11:29:18  ( -68.33,-173.73)    2.77                16
 01/08/2021   12:20:06   (  67.55,  -5.53) 01/08/2021   12:18:56  (  67.59,  -6.94)   59.99                70
 01/11/2021   02:55:46   (  68.38, 134.57) 01/11/2021   02:56:16  (  68.37, 134.57)    1.10                30
 01/11/2021   03:46:28   ( -68.28, -57.98) 01/11/2021   03:45:46  ( -68.27, -57.92)    2.78                42
 01/13/2021   18:22:03   ( -68.78,  82.50) 01/13/2021   18:23:14  ( -68.65,  83.14)   29.61                71
 01/13/2021   19:12:41   (  68.36,-109.62) 01/13/2021   19:12:44  (  68.37,-109.56)    2.71                 3
 01/13/2021   20:03:22   ( -68.20,  57.89) 01/13/2021   20:02:15  ( -68.21,  57.89)    1.37                67