Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 8 23.  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)
 08/25/2021   15:50:51   (  68.81, -59.66) 08/25/2021   15:51:38  (  68.82, -59.60)    2.76                47
 08/25/2021   16:41:32   ( -68.68, 107.84) 08/25/2021   16:41:09  ( -68.66, 107.82)    2.40                23
 08/25/2021   17:31:59   (  67.63, -83.52) 08/25/2021   17:30:52  (  67.65, -85.72)   93.09                67
 08/28/2021   07:17:18   ( -69.70,-112.46) 08/28/2021   07:18:25  ( -69.59,-110.37)   81.75                67
 08/28/2021   08:07:47   (  68.78,  56.15) 08/28/2021   08:08:05  (  68.76,  56.20)    3.18                18
 08/28/2021   08:58:28   ( -68.64,-136.35) 08/28/2021   08:57:35  ( -68.65,-136.30)    2.01                53
 08/30/2021   23:33:58   ( -68.82,   4.55) 08/30/2021   23:35:05  ( -68.81,   4.49)    3.05                67
 08/31/2021   00:24:42   (  68.70, 172.02) 08/31/2021   00:24:32  (  68.69, 171.99)    1.92                10
 08/31/2021   01:15:18   ( -68.29, -20.12) 08/31/2021   01:14:06  ( -68.36, -20.77)   27.84                72
 09/02/2021   15:50:54   ( -68.80, 120.36) 09/02/2021   15:51:31  ( -68.79, 120.35)    0.60                37
 09/02/2021   16:41:38   (  68.68, -72.18) 09/02/2021   16:40:58  (  68.67, -72.15)    1.42                40
 09/05/2021   07:17:12   (  69.13,  68.34) 09/05/2021   07:18:23  (  69.04,  68.91)   25.11                71
 09/05/2021   08:07:49   ( -68.77,-123.84) 09/05/2021   08:07:56  ( -68.77,-123.79)    2.01                 7
 09/05/2021   08:58:32   (  68.60,  43.69) 09/05/2021   08:57:24  (  68.59,  43.63)    2.85                68