Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 14.  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)
 05/16/2021   09:48:00   ( -68.60,-148.78) 05/16/2021   09:48:51  ( -68.60,-148.74)    1.78                51
 05/16/2021   10:38:43   (  68.43,  18.76) 05/16/2021   10:38:19  (  68.43,  18.70)    2.47                24
 05/16/2021   11:29:10   ( -67.53,-172.81) 05/16/2021   11:28:02  ( -67.60,-174.64)   78.22                68
 05/19/2021   01:14:28   (  69.42, 158.53) 05/19/2021   01:15:36  (  69.28, 160.36)   73.56                68
 05/19/2021   02:04:55   ( -68.53, -32.92) 05/19/2021   02:05:17  ( -68.56, -32.91)    3.37                22
 05/19/2021   02:55:39   (  68.41, 134.54) 05/19/2021   02:54:45  (  68.39, 134.52)    2.70                54
 05/21/2021   17:31:10   (  68.61, -84.58) 05/21/2021   17:32:14  (  68.61, -84.60)    1.10                64
 05/21/2021   18:21:52   ( -68.51,  82.87) 05/21/2021   18:21:44  ( -68.51,  82.91)    1.60                 8
 05/21/2021   19:12:28   (  67.96,-109.12) 05/21/2021   19:11:17  (  68.05,-109.99)   37.49                71
 05/24/2021   09:48:06   (  68.54,  31.28) 05/24/2021   09:48:41  (  68.55,  31.21)    3.06                35
 05/24/2021   10:38:48   ( -68.44,-161.28) 05/24/2021   10:38:11  ( -68.45,-161.28)    1.58                37
 05/27/2021   01:14:25   ( -68.95, -20.83) 05/27/2021   01:15:37  ( -68.83, -20.20)   28.30                72
 05/27/2021   02:05:03   (  68.53, 147.06) 05/27/2021   02:05:07  (  68.54, 147.08)    1.91                 4
 05/27/2021   02:55:44   ( -68.37, -45.42) 05/27/2021   02:54:38  ( -68.39, -45.47)    3.07                66