Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 9 18.  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)
 09/18/2020   10:39:27   (  68.38,  18.76) 09/18/2020   10:40:15  (  68.36,  18.72)    2.81                48
 09/18/2020   11:30:08   ( -68.23,-173.73) 09/18/2020   11:29:45  ( -68.25,-173.78)    2.29                23
 09/18/2020   12:20:35   (  67.19,  -5.15) 09/18/2020   12:19:28  (  67.24,  -7.28)   91.86                67
 09/21/2020   02:05:55   ( -69.35, -34.10) 09/21/2020   02:07:02  ( -69.29, -31.87)   87.68                67
 09/21/2020   02:56:22   (  68.33, 134.60) 09/21/2020   02:56:44  (  68.34, 134.59)    1.80                22
 09/21/2020   03:47:04   ( -68.23, -57.96) 09/21/2020   03:46:14  ( -68.24, -57.91)    2.42                50
 09/23/2020   18:22:34   ( -68.45,  82.91) 09/23/2020   18:23:46  ( -68.45,  82.95)    1.95                72
 09/23/2020   19:13:17   (  68.28,-109.57) 09/23/2020   19:13:14  (  68.28,-109.61)    1.78                 3
 09/23/2020   20:03:58   ( -68.13,  57.94) 09/23/2020   20:02:45  ( -68.12,  57.84)    4.41                73
 09/26/2020   10:39:29   ( -68.40,-161.26) 09/26/2020   10:40:16  ( -68.40,-161.24)    1.01                47
 09/26/2020   11:30:12   (  68.23,   6.26) 09/26/2020   11:29:44  (  68.22,   6.20)    3.14                28
 09/26/2020   12:20:37   ( -67.22, 174.82) 09/26/2020   12:19:30  ( -67.23, 172.70)   91.40                67
 09/29/2020   02:05:55   (  69.21, 146.11) 09/29/2020   02:07:03  (  69.11, 147.90)   71.83                68
 09/29/2020   02:56:23   ( -68.35, -45.43) 09/29/2020   02:56:45  ( -68.35, -45.42)    0.90                22
 09/29/2020   03:47:06   (  68.19, 122.09) 09/29/2020   03:46:12  (  68.22, 122.08)    3.36                54
 10/01/2020   18:22:36   (  68.41, -97.05) 10/01/2020   18:23:44  (  68.45, -97.05)    3.63                68
 10/01/2020   19:13:18   ( -68.31,  70.40) 10/01/2020   19:13:15  ( -68.30,  70.41)    1.09                 3
 10/01/2020   20:03:57   (  67.93,-121.82) 10/01/2020   20:02:45  (  68.00,-122.30)   21.58                72