Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 1 30.  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)
 02/01/2021   10:38:53   ( -68.45,-161.30) 02/01/2021   10:39:37  ( -68.43,-161.25)    2.69                44
 02/01/2021   11:29:36   (  68.28,   6.23) 02/01/2021   11:29:05  (  68.27,   6.19)    2.09                31
 02/01/2021   12:19:59   ( -67.16, 174.91) 02/01/2021   12:18:52  ( -67.21, 172.62)   98.97                67
 02/04/2021   02:05:16   (  69.12, 146.24) 02/04/2021   02:06:25  (  69.00, 147.70)   59.40                69
 02/04/2021   02:55:46   ( -68.38, -45.45) 02/04/2021   02:56:04  ( -68.39, -45.42)    1.42                18
 02/04/2021   03:46:29   (  68.22, 122.08) 02/04/2021   03:45:32  (  68.22, 122.02)    2.50                57
 02/06/2021   18:21:59   (  68.47, -97.11) 02/06/2021   18:23:02  (  68.45, -97.11)    2.68                63
 02/06/2021   19:12:40   ( -68.32,  70.40) 02/06/2021   19:12:32  ( -68.35,  70.40)    2.77                 8
 02/06/2021   20:03:17   (  67.83,-121.67) 02/06/2021   20:02:05  (  67.89,-122.49)   34.86                72
 02/09/2021   10:38:53   (  68.41,  18.74) 02/09/2021   10:39:30  (  68.39,  18.71)    2.58                37
 02/09/2021   11:29:35   ( -68.32,-173.82) 02/09/2021   11:29:00  ( -68.29,-173.78)    2.82                35
 02/12/2021   02:05:13   ( -69.00, -33.58) 02/12/2021   02:06:23  ( -68.90, -32.43)   47.53                70
 02/12/2021   02:55:47   (  68.36, 134.58) 02/12/2021   02:55:57  (  68.39, 134.59)    3.39                10
 02/12/2021   03:46:29   ( -68.26, -57.97) 02/12/2021   03:45:28  ( -68.24, -57.96)    2.26                61