Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 4 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)
 04/06/2021   09:48:06   (  69.01,  30.66) 04/06/2021   09:49:16  (  68.87,  31.62)   41.46                70
 04/06/2021   10:38:39   ( -68.46,-161.28) 04/06/2021   10:38:52  ( -68.43,-161.29)    3.40                13
 04/06/2021   11:29:23   (  68.32,   6.21) 04/06/2021   11:28:19  (  68.32,   6.22)    0.70                64
 04/09/2021   02:04:51   (  68.52, 147.09) 04/09/2021   02:05:50  (  68.52, 147.06)    1.30                59
 04/09/2021   02:55:32   ( -68.40, -45.42) 04/09/2021   02:55:20  ( -68.41, -45.43)    1.84                12
 04/09/2021   03:46:06   (  67.72, 122.73) 04/09/2021   03:44:56  (  67.79, 121.49)   53.15                70
 04/11/2021   18:21:45   (  68.52, -97.13) 04/11/2021   18:22:18  (  68.49, -97.09)    3.26                33
 04/11/2021   19:12:26   ( -68.39,  70.36) 04/11/2021   19:11:48  ( -68.39,  70.42)    2.31                38
 04/14/2021   09:48:01   ( -69.02,-149.33) 04/14/2021   09:49:12  ( -68.92,-148.33)   41.30                71
 04/14/2021   10:38:37   (  68.47,  18.72) 04/14/2021   10:38:45  (  68.47,  18.75)    1.40                 8
 04/14/2021   11:29:18   ( -68.33,-173.79) 04/14/2021   11:28:16  ( -68.31,-173.80)    2.39                62
 04/17/2021   02:04:46   ( -68.54, -32.90) 04/17/2021   02:05:46  ( -68.56, -32.91)    2.32                60
 04/17/2021   02:55:30   (  68.41, 134.56) 04/17/2021   02:55:13  (  68.43, 134.59)    2.54                17
 04/17/2021   03:46:02   ( -67.79, -57.33) 04/17/2021   03:44:52  ( -67.83, -58.48)   48.66                70