Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 3 9.  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)
 03/10/2021   18:21:55   (  68.46, -97.09) 03/10/2021   18:22:42  (  68.44, -97.13)    2.66                47
 03/10/2021   19:12:36   ( -68.33,  70.40) 03/10/2021   19:12:12  ( -68.33,  70.37)    1.09                24
 03/10/2021   20:03:02   (  67.22,-120.94) 03/10/2021   20:01:56  (  67.27,-123.21)   97.75                66
 03/13/2021   09:48:20   ( -69.41,-149.93) 03/13/2021   09:49:27  ( -69.34,-147.76)   85.27                67
 03/13/2021   10:38:48   (  68.43,  18.72) 03/13/2021   10:39:08  (  68.45,  18.76)    3.03                20
 03/13/2021   11:29:29   ( -68.30,-173.79) 03/13/2021   11:28:39  ( -68.29,-173.80)    0.79                50
 03/16/2021   02:04:58   ( -68.53, -32.94) 03/16/2021   02:06:09  ( -68.52, -32.92)    1.30                71
 03/16/2021   02:55:42   (  68.40, 134.53) 03/16/2021   02:55:36  (  68.40, 134.58)    2.11                 6
 03/16/2021   03:46:21   ( -68.16, -57.84) 03/16/2021   03:45:08  ( -68.19, -58.04)    8.82                73
 03/18/2021   18:21:51   ( -68.45,  82.93) 03/18/2021   18:22:37  ( -68.47,  82.90)    2.92                46
 03/18/2021   19:12:35   (  68.32,-109.59) 03/18/2021   19:12:04  (  68.35,-109.60)    3.02                31
 03/18/2021   20:02:58   ( -67.22,  59.08) 03/18/2021   20:01:52  ( -67.25,  56.76)   99.78                66
 03/21/2021   09:48:16   (  69.21,  30.37) 03/21/2021   09:49:25  (  69.07,  31.89)   62.25                69
 03/21/2021   10:38:45   ( -68.43,-161.26) 03/21/2021   10:39:05  ( -68.42,-161.29)    1.45                20
 03/21/2021   11:29:29   (  68.30,   6.21) 03/21/2021   11:28:32  (  68.29,   6.21)    0.94                57