Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 24.  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)
 05/27/2021   01:14:25   ( -68.97, -20.85) 05/27/2021   01:15:36  ( -68.88, -20.15)   29.89                71
 05/27/2021   02:05:03   (  68.53, 147.05) 05/27/2021   02:05:07  (  68.54, 147.08)    1.72                 4
 05/27/2021   02:55:44   ( -68.39, -45.44) 05/27/2021   02:54:38  ( -68.38, -45.48)    1.97                66
 05/29/2021   17:31:14   ( -68.59,  95.44) 05/29/2021   17:32:06  ( -68.59,  95.37)    2.46                52
 05/29/2021   18:21:58   (  68.47, -97.10) 05/29/2021   18:21:33  (  68.47, -97.12)    0.84                25
 05/29/2021   19:12:25   ( -67.57,  71.35) 05/29/2021   19:11:17  ( -67.58,  69.48)   79.38                68
 06/01/2021   08:57:43   (  69.42,  42.73) 06/01/2021   08:58:51  (  69.28,  44.50)   71.32                68
 06/01/2021   09:48:11   ( -68.58,-148.79) 06/01/2021   09:48:32  ( -68.57,-148.77)    1.18                21
 06/01/2021   10:38:55   (  68.46,  18.67) 06/01/2021   10:37:59  (  68.45,  18.73)    3.13                56
 06/04/2021   01:14:25   (  68.62, 159.61) 06/04/2021   01:15:28  (  68.64, 159.58)    3.23                63
 06/04/2021   02:05:07   ( -68.51, -32.94) 06/04/2021   02:04:59  ( -68.49, -32.98)    3.22                 8
 06/04/2021   02:55:43   (  67.97, 135.06) 06/04/2021   02:54:32  (  68.03, 134.12)   39.86                71
 06/06/2021   17:31:22   (  68.61, -84.62) 06/06/2021   17:31:54  (  68.61, -84.58)    1.59                32
 06/06/2021   18:22:03   ( -68.45,  82.91) 06/06/2021   18:21:25  ( -68.46,  82.87)    1.69                38