Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 7 9.  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)
 07/11/2021   08:07:34   (  69.68,  54.95) 07/11/2021   08:08:41  (  69.56,  57.24)   89.48                67
 07/11/2021   08:57:58   ( -68.64,-136.27) 07/11/2021   08:58:26  ( -68.62,-136.34)    3.22                28
 07/11/2021   09:48:42   (  68.51,  31.21) 07/11/2021   09:47:53  (  68.51,  31.17)    1.62                49
 07/14/2021   00:24:13   (  68.71, 172.08) 07/14/2021   00:25:22  (  68.72, 172.04)    2.36                69
 07/14/2021   01:14:55   ( -68.63, -20.49) 07/14/2021   01:14:52  ( -68.62, -20.46)    1.41                 3
 07/14/2021   02:05:35   (  68.28, 147.27) 07/14/2021   02:04:22  (  68.33, 146.84)   18.44                73
 07/16/2021   16:41:10   (  68.70, -72.14) 07/16/2021   16:41:48  (  68.71, -72.10)    2.21                38
 07/16/2021   17:31:51   ( -68.56,  95.36) 07/16/2021   17:31:19  ( -68.55,  95.34)    1.19                32
 07/19/2021   08:07:30   ( -69.24,-124.43) 07/19/2021   08:08:40  ( -69.15,-123.31)   45.66                70
 07/19/2021   08:58:05   (  68.64,  43.70) 07/19/2021   08:58:14  (  68.64,  43.70)    0.44                 9
 07/19/2021   09:48:46   ( -68.50,-148.79) 07/19/2021   09:47:45  ( -68.48,-148.86)    3.32                61
 07/22/2021   00:24:18   ( -68.76,  -8.00) 07/22/2021   00:25:13  ( -68.74,  -7.94)    3.02                55
 07/22/2021   01:15:01   (  68.58, 159.54) 07/22/2021   01:14:40  (  68.62, 159.55)    3.55                21
 07/22/2021   02:05:31   ( -67.85, -32.20) 07/22/2021   02:04:21  ( -67.91, -33.66)   61.48                70