Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 3 20.  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)
 03/21/2020   02:56:00   ( -68.92, -46.18) 03/21/2020   02:57:10  ( -68.82, -45.02)   47.91                70
 03/21/2020   03:46:35   (  68.30, 121.95) 03/21/2020   03:46:44  (  68.31, 122.01)    2.60                 9
 03/21/2020   04:37:16   ( -68.18, -70.57) 03/21/2020   04:36:15  ( -68.15, -70.55)    2.75                61
 03/23/2020   19:12:44   ( -68.35,  70.35) 03/23/2020   19:13:45  ( -68.37,  70.32)    2.68                61
 03/23/2020   20:03:29   (  68.27,-122.24) 03/23/2020   20:03:12  (  68.25,-122.18)    3.35                17
 03/23/2020   20:54:01   ( -67.65,  45.85) 03/23/2020   20:52:50  ( -67.70,  44.82)   44.00                71
 03/26/2020   11:29:39   ( -68.31,-173.83) 03/26/2020   11:30:14  ( -68.31,-173.87)    1.79                35
 03/26/2020   12:20:23   (  68.18,  -6.36) 03/26/2020   12:19:41  (  68.18,  -6.37)    0.68                42
 03/29/2020   02:55:58   (  68.68, 134.13) 03/29/2020   02:57:08  (  68.61, 134.76)   26.59                70
 03/29/2020   03:46:34   ( -68.28, -58.02) 03/29/2020   03:46:42  ( -68.29, -58.00)    2.14                 8
 03/29/2020   04:37:18   (  68.15, 109.45) 03/29/2020   04:36:09  (  68.17, 109.50)    2.62                69
 03/31/2020   19:12:48   (  68.39,-109.71) 03/31/2020   19:13:40  (  68.37,-109.65)    2.94                52
 03/31/2020   20:03:29   ( -68.24,  57.79) 03/31/2020   20:03:11  ( -68.23,  57.81)    2.24                18
 03/31/2020   20:53:59   (  67.36,-133.81) 03/31/2020   20:52:50  (  67.42,-135.47)   71.04                69