Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 12 26.  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)
 12/28/2020   18:22:05   ( -69.04,  82.18) 12/28/2020   18:23:15  ( -68.90,  83.46)   53.18                70
 12/28/2020   19:12:38   (  68.32,-109.56) 12/28/2020   19:12:50  (  68.34,-109.58)    2.21                12
 12/28/2020   20:03:20   ( -68.24,  57.87) 12/28/2020   20:02:20  ( -68.23,  57.92)    2.37                60
 12/31/2020   10:38:49   ( -68.41,-161.21) 12/31/2020   10:39:52  ( -68.42,-161.25)    2.37                63
 12/31/2020   11:29:33   (  68.29,   6.26) 12/31/2020   11:29:19  (  68.31,   6.25)    2.36                14
 12/31/2020   12:20:07   ( -67.77, 174.22) 12/31/2020   12:18:56  ( -67.81, 173.31)   38.95                71
 01/03/2021   02:55:44   ( -68.37, -45.39) 01/03/2021   02:56:21  ( -68.38, -45.42)    2.20                37
 01/03/2021   03:46:28   (  68.25, 122.07) 01/03/2021   03:45:48  (  68.27, 122.08)    1.95                40
 01/05/2021   18:22:04   (  68.80, -97.51) 01/05/2021   18:23:15  (  68.72, -96.76)   31.53                71
 01/05/2021   19:12:39   ( -68.33,  70.43) 01/05/2021   19:12:50  ( -68.34,  70.41)    1.54                11
 01/05/2021   20:03:23   (  68.22,-122.12) 01/05/2021   20:02:17  (  68.22,-122.09)    1.21                66
 01/08/2021   10:38:52   (  68.45,  18.72) 01/08/2021   10:39:47  (  68.44,  18.78)    2.20                55
 01/08/2021   11:29:33   ( -68.29,-173.76) 01/08/2021   11:29:18  ( -68.29,-173.77)    0.66                15
 01/08/2021   12:20:05   (  67.53,  -5.51) 01/08/2021   12:18:56  (  67.55,  -6.99)   62.80                69