Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 3 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)
 04/01/2021   02:04:53   ( -68.54, -32.94) 04/01/2021   02:05:55  ( -68.53, -32.92)    2.04                62
 04/01/2021   02:55:37   (  68.41, 134.54) 04/01/2021   02:55:22  (  68.42, 134.60)    2.66                15
 04/01/2021   03:46:10   ( -67.85, -57.44) 04/01/2021   03:44:59  ( -67.92, -58.36)   39.43                71
 04/03/2021   18:21:46   ( -68.48,  82.92) 04/03/2021   18:22:22  ( -68.50,  82.93)    2.28                36
 04/03/2021   19:12:30   (  68.34,-109.60) 04/03/2021   19:11:50  (  68.33,-109.63)    1.96                40
 04/06/2021   09:48:03   (  68.87,  30.85) 04/06/2021   09:49:14  (  68.79,  31.54)   28.82                71
 04/06/2021   10:38:39   ( -68.47,-161.30) 04/06/2021   10:38:48  ( -68.46,-161.23)    2.76                 9
 04/06/2021   11:29:22   (  68.29,   6.25) 04/06/2021   11:28:16  (  68.29,   6.21)    1.96                66
 04/09/2021   02:04:51   (  68.55, 147.06) 04/09/2021   02:05:45  (  68.53, 147.09)    2.52                54
 04/09/2021   02:55:32   ( -68.41, -45.44) 04/09/2021   02:55:15  ( -68.42, -45.40)    2.12                17
 04/09/2021   03:46:03   (  67.58, 122.90) 04/09/2021   03:44:54  (  67.63, 121.32)   67.32                69
 04/11/2021   18:21:44   (  68.49, -97.09) 04/11/2021   18:22:12  (  68.48, -97.09)    1.96                28
 04/11/2021   19:12:25   ( -68.36,  70.41) 04/11/2021   19:11:42  ( -68.38,  70.43)    2.30                43