Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 4 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)
 04/30/2020   04:37:06   (  67.46, 110.29) 04/30/2020   04:35:57  (  67.50, 108.84)   61.99                69
 05/02/2020   19:12:47   (  68.32,-109.62) 05/02/2020   19:13:16  (  68.31,-109.60)    1.41                29
 05/02/2020   20:03:28   ( -68.18,  57.87) 05/02/2020   20:02:46  ( -68.20,  57.90)    2.06                42
 05/05/2020   10:39:02   ( -68.66,-161.60) 05/05/2020   10:40:13  ( -68.56,-161.05)   24.43                71
 05/05/2020   11:29:41   (  68.27,   6.22) 05/05/2020   11:29:43  (  68.28,   6.26)    2.15                 2
 05/05/2020   12:20:22   ( -68.13, 173.72) 05/05/2020   12:19:14  ( -68.12, 173.69)    1.63                68
 05/08/2020   02:55:50   ( -68.34, -45.40) 05/08/2020   02:56:42  ( -68.36, -45.41)    2.85                52
 05/08/2020   03:46:34   (  68.22, 122.05) 05/08/2020   03:46:10  (  68.19, 122.04)    3.34                24
 05/08/2020   04:37:01   ( -67.32, -69.52) 05/08/2020   04:35:53  ( -67.36, -71.29)   75.77                68
 05/10/2020   18:22:19   (  69.29, -98.24) 05/10/2020   18:23:26  (  69.15, -96.16)   83.77                67
 05/10/2020   19:12:44   ( -68.28,  70.44) 05/10/2020   19:13:10  ( -68.27,  70.37)    3.24                26
 05/10/2020   20:03:28   (  68.17,-122.11) 05/10/2020   20:02:37  (  68.15,-122.12)    2.65                51
 05/13/2020   10:38:57   (  68.39,  18.76) 05/13/2020   10:40:06  (  68.38,  18.77)    1.25                69
 05/13/2020   11:29:38   ( -68.24,-173.73) 05/13/2020   11:29:37  ( -68.22,-173.79)    2.88                 1
 05/13/2020   12:20:18   (  67.91,  -6.01) 05/13/2020   12:19:06  (  67.99,  -6.41)   18.99                72