Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 10 13.  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)
 10/15/2021   06:26:54   (  69.92,  79.89) 10/15/2021   06:28:00  (  69.86,  82.33)   93.34                66
 10/15/2021   07:17:18   ( -68.87,-111.29) 10/15/2021   07:17:46  ( -68.86,-111.35)    2.80                28
 10/15/2021   08:08:02   (  68.75,  56.18) 10/15/2021   08:07:13  (  68.75,  56.15)    1.19                49
 10/17/2021   22:43:32   (  68.99,-162.99) 10/17/2021   22:44:41  (  68.98,-162.95)    1.48                69
 10/17/2021   23:34:13   ( -68.84,   4.53) 10/17/2021   23:34:12  ( -68.82,   4.47)    2.93                 1
 10/18/2021   00:24:54   (  68.56, 172.21) 10/18/2021   00:23:41  (  68.59, 171.84)   15.37                73
 10/20/2021   15:00:26   (  68.91, -47.11) 10/20/2021   15:01:07  (  68.93, -47.14)    3.02                41
 10/20/2021   15:51:08   ( -68.81, 120.34) 10/20/2021   15:50:37  ( -68.83, 120.36)    2.10                31
 10/23/2021   06:26:47   ( -69.58, -99.59) 10/23/2021   06:27:56  ( -69.49, -98.17)   55.76                69
 10/23/2021   07:17:20   (  68.88,  68.70) 10/23/2021   07:17:32  (  68.87,  68.67)    1.78                12
 10/23/2021   08:08:02   ( -68.79,-123.85) 10/23/2021   08:07:02  ( -68.77,-123.82)    1.99                60
 10/25/2021   22:43:31   ( -68.97,  17.04) 10/25/2021   22:44:30  ( -68.99,  17.05)    1.43                59
 10/25/2021   23:34:15   (  68.87,-175.50) 10/25/2021   23:33:57  (  68.86,-175.46)    1.73                18
 10/26/2021   00:24:46   ( -68.18,  -7.28) 10/26/2021   00:23:36  ( -68.26,  -8.56)   53.82                70