Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 1 21.  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)
 01/22/2020   10:38:52   (  69.21,  17.76) 01/22/2020   10:40:00  (  69.13,  19.60)   73.11                68
 01/22/2020   11:29:20   ( -68.37,-173.79) 01/22/2020   11:29:42  ( -68.35,-173.74)    2.90                22
 01/22/2020   12:20:03   (  68.20,  -6.26) 01/22/2020   12:19:10  (  68.19,  -6.29)    1.25                53
 01/25/2020   02:55:33   (  68.57, 134.41) 01/25/2020   02:56:44  (  68.51, 134.68)   13.09                71
 01/25/2020   03:46:12   ( -68.32, -57.95) 01/25/2020   03:46:16  ( -68.30, -57.95)    2.85                 4
 01/25/2020   04:36:56   (  68.21, 109.51) 01/25/2020   04:35:43  (  68.19, 109.57)    3.18                73
 01/27/2020   19:12:23   (  68.42,-109.61) 01/27/2020   19:13:19  (  68.39,-109.60)    3.21                56
 01/27/2020   20:03:04   ( -68.27,  57.89) 01/27/2020   20:02:49  ( -68.29,  57.91)    1.98                15
 01/27/2020   20:53:36   (  67.51,-133.85) 01/27/2020   20:52:27  (  67.56,-135.29)   61.45                69
 01/30/2020   11:29:15   (  68.38,   6.22) 01/30/2020   11:29:52  (  68.38,   6.24)    0.84                37
 01/30/2020   12:19:56   ( -68.23, 173.73) 01/30/2020   12:19:23  ( -68.22, 173.69)    1.72                33
 02/02/2020   02:55:37   ( -69.24, -46.47) 02/02/2020   02:56:45  ( -69.14, -44.58)   75.51                68
 02/02/2020   03:46:06   (  68.33, 122.06) 02/02/2020   03:46:24  (  68.36, 122.09)    3.19                18
 02/02/2020   04:36:48   ( -68.23, -70.50) 02/02/2020   04:35:55  ( -68.21, -70.46)    3.15                53