Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 8 28.  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)
 08/28/2021   07:17:18   ( -69.71,-112.46) 08/28/2021   07:18:25  ( -69.59,-110.38)   81.77                67
 08/28/2021   08:07:47   (  68.78,  56.15) 08/28/2021   08:08:05  (  68.76,  56.20)    2.92                18
 08/28/2021   08:58:28   ( -68.65,-136.36) 08/28/2021   08:57:35  ( -68.65,-136.31)    1.76                53
 08/30/2021   23:33:58   ( -68.83,   4.55) 08/30/2021   23:35:04  ( -68.85,   4.55)    2.81                66
 08/31/2021   00:24:42   (  68.70, 172.02) 08/31/2021   00:24:32  (  68.69, 171.98)    2.34                10
 08/31/2021   01:15:18   ( -68.30, -20.13) 08/31/2021   01:14:06  ( -68.35, -20.79)   27.81                72
 09/02/2021   15:50:54   ( -68.80, 120.35) 09/02/2021   15:51:31  ( -68.78, 120.33)    2.88                37
 09/02/2021   16:41:38   (  68.68, -72.18) 09/02/2021   16:40:58  (  68.66, -72.17)    2.10                40
 09/05/2021   07:17:12   (  69.13,  68.34) 09/05/2021   07:18:23  (  69.01,  68.88)   25.22                71
 09/05/2021   08:07:48   ( -68.72,-123.77) 09/05/2021   08:07:56  ( -68.74,-123.82)    3.23                 8
 09/05/2021   08:58:32   (  68.60,  43.69) 09/05/2021   08:57:23  (  68.62,  43.67)    2.53                69
 09/07/2021   23:34:03   (  68.85,-175.49) 09/07/2021   23:34:51  (  68.86,-175.43)    3.12                48
 09/08/2021   00:24:44   ( -68.70,  -7.98) 09/08/2021   00:24:22  ( -68.71,  -7.99)    0.96                22
 09/08/2021   01:15:11   (  67.67, 160.65) 09/08/2021   01:14:04  (  67.74, 158.52)   90.41                67
 09/10/2021   15:00:30   ( -69.74, 131.71) 09/10/2021   15:01:37  ( -69.66, 133.85)   83.12                67
 09/10/2021   15:50:58   (  68.78, -59.63) 09/10/2021   15:51:18  (  68.76, -59.67)    2.97                20
 09/10/2021   16:41:40   ( -68.68, 107.82) 09/10/2021   16:40:48  ( -68.66, 107.84)    2.22                52