Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 3 19.  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   ( -68.93, -46.19) 03/21/2020   02:57:10  ( -68.80, -45.03)   48.70                70
 03/21/2020   03:46:34   (  68.26, 122.00) 03/21/2020   03:46:44  (  68.30, 121.99)    3.48                10
 03/21/2020   04:37:15   ( -68.14, -70.52) 03/21/2020   04:36:15  ( -68.14, -70.57)    2.00                60
 03/23/2020   19:12:45   ( -68.36,  70.34) 03/23/2020   19:13:46  ( -68.35,  70.30)    1.86                61
 03/23/2020   20:03:29   (  68.23,-122.19) 03/23/2020   20:03:13  (  68.23,-122.20)    0.69                16
 03/23/2020   20:54:02   ( -67.67,  45.83) 03/23/2020   20:52:51  ( -67.69,  44.80)   43.89                71
 03/26/2020   11:29:39   ( -68.32,-173.85) 03/26/2020   11:30:13  ( -68.34,-173.83)    2.17                34
 03/26/2020   12:20:23   (  68.20,  -6.37) 03/26/2020   12:19:40  (  68.22,  -6.33)    2.86                43
 03/29/2020   02:55:57   (  68.64, 134.19) 03/29/2020   02:57:08  (  68.59, 134.73)   22.73                71
 03/29/2020   03:46:34   ( -68.29, -58.03) 03/29/2020   03:46:42  ( -68.27, -58.02)    1.85                 8
 03/29/2020   04:37:18   (  68.16, 109.44) 03/29/2020   04:36:09  (  68.14, 109.47)    2.70                69
 03/31/2020   19:12:47   (  68.34,-109.65) 03/31/2020   19:13:40  (  68.34,-109.68)    1.30                53
 03/31/2020   20:03:29   ( -68.25,  57.78) 03/31/2020   20:03:10  ( -68.25,  57.84)    2.51                19
 03/31/2020   20:53:58   (  67.32,-133.76) 03/31/2020   20:52:50  (  67.39,-135.50)   74.89                68