Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 7 1.  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)
 07/03/2021   08:57:54   (  68.66,  43.71) 07/03/2021   08:58:33  (  68.67,  43.72)    1.37                39
 07/03/2021   09:48:35   ( -68.52,-148.78) 07/03/2021   09:48:04  ( -68.50,-148.85)    3.05                31
 07/06/2021   00:24:16   ( -69.25,  -8.63) 07/06/2021   00:25:26  ( -69.13,  -7.47)   47.98                70
 07/06/2021   01:14:51   (  68.64, 159.50) 07/06/2021   01:15:00  (  68.62, 159.54)    2.86                 9
 07/06/2021   02:05:32   ( -68.50, -33.00) 07/06/2021   02:04:30  ( -68.52, -32.95)    2.40                62
 07/08/2021   16:41:02   ( -68.70, 107.88) 07/08/2021   16:41:59  ( -68.69, 107.86)    1.34                57
 07/08/2021   17:31:46   (  68.58, -84.65) 07/08/2021   17:31:26  (  68.57, -84.64)    0.81                20
 07/08/2021   18:22:16   ( -67.84,  83.61) 07/08/2021   18:21:06  ( -67.91,  82.21)   59.01                70
 07/11/2021   08:07:34   (  69.68,  54.95) 07/11/2021   08:08:41  (  69.57,  57.24)   89.91                67
 07/11/2021   08:57:58   ( -68.63,-136.27) 07/11/2021   08:58:26  ( -68.63,-136.32)    2.32                28
 07/11/2021   09:48:42   (  68.51,  31.20) 07/11/2021   09:47:53  (  68.51,  31.17)    1.21                49
 07/14/2021   00:24:13   (  68.72, 172.07) 07/14/2021   00:25:22  (  68.73, 172.04)    1.63                69
 07/14/2021   01:14:55   ( -68.62, -20.49) 07/14/2021   01:14:52  ( -68.63, -20.45)    1.86                 3
 07/14/2021   02:05:35   (  68.29, 147.25) 07/14/2021   02:04:22  (  68.34, 146.84)   17.71                73