Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 2 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)
 02/28/2021   02:05:06   ( -68.75, -33.25) 02/28/2021   02:06:17  ( -68.67, -32.74)   22.99                71
 02/28/2021   02:55:45   (  68.36, 134.58) 02/28/2021   02:55:47  (  68.39, 134.57)    2.95                 2
 02/28/2021   03:46:26   ( -68.22, -57.93) 02/28/2021   03:45:18  ( -68.22, -57.99)    2.54                68
 03/02/2021   18:21:56   ( -68.50,  82.86) 03/02/2021   18:22:48  ( -68.48,  82.91)    3.02                52
 03/02/2021   19:12:39   (  68.32,-109.60) 03/02/2021   19:12:16  (  68.31,-109.65)    2.53                23
 03/02/2021   20:03:07   ( -67.48,  58.76) 03/02/2021   20:01:58  ( -67.53,  57.09)   71.26                69
 03/05/2021   09:48:24   (  69.45,  30.01) 03/05/2021   09:49:31  (  69.33,  32.24)   88.37                67
 03/05/2021   10:38:48   ( -68.40,-161.24) 03/05/2021   10:39:16  ( -68.40,-161.31)    2.74                28
 03/05/2021   11:29:32   (  68.28,   6.22) 03/05/2021   11:28:43  (  68.28,   6.19)    1.31                49
 03/08/2021   02:05:02   (  68.56, 147.01) 03/08/2021   02:06:13  (  68.52, 147.09)    5.77                71
 03/08/2021   02:55:42   ( -68.37, -45.42) 03/08/2021   02:55:44  ( -68.36, -45.47)    1.88                 2
 03/08/2021   03:46:25   (  68.19, 122.11) 03/08/2021   03:45:12  (  68.18, 121.96)    6.12                73
 03/10/2021   18:21:55   (  68.47, -97.11) 03/10/2021   18:22:41  (  68.48, -97.08)    0.98                46
 03/10/2021   19:12:36   ( -68.33,  70.40) 03/10/2021   19:12:12  ( -68.32,  70.36)    1.42                24
 03/10/2021   20:03:02   (  67.24,-120.95) 03/10/2021   20:01:55  (  67.30,-123.16)   95.35                67