Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 10 16.  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)
 10/17/2021   22:43:37   (  68.95,-162.96) 10/17/2021   22:44:42  (  68.95,-163.00)    1.74                65
 10/17/2021   23:34:19   ( -68.85,   4.49) 10/17/2021   23:34:12  ( -68.84,   4.49)    1.82                 7
 10/18/2021   00:24:56   (  68.36, 172.45) 10/18/2021   00:23:45  (  68.39, 171.59)   35.66                71
 10/20/2021   15:00:35   (  68.93, -47.18) 10/20/2021   15:01:06  (  68.95, -47.12)    3.24                31
 10/20/2021   15:51:16   ( -68.78, 120.34) 10/20/2021   15:50:37  ( -68.79, 120.31)    1.34                39
 10/23/2021   06:26:52   ( -69.14, -99.02) 10/23/2021   06:28:04  ( -69.07, -98.73)   14.12                72
 10/23/2021   07:17:33   (  68.87,  68.67) 10/23/2021   07:17:32  (  68.89,  68.69)    2.88                 1
 10/23/2021   08:08:14   ( -68.71,-123.81) 10/23/2021   08:07:03  ( -68.73,-123.87)    3.21                71
 10/25/2021   22:43:48   ( -68.97,  16.98) 10/25/2021   22:44:31  ( -68.95,  17.00)    2.83                43
 10/25/2021   23:34:31   (  68.80,-175.49) 10/25/2021   23:33:58  (  68.83,-175.51)    2.35                33
 10/28/2021   14:10:11   (  69.39, -35.17) 10/28/2021   14:11:22  (  69.26, -34.35)   35.25                71
 10/28/2021   15:00:46   ( -68.91, 132.82) 10/28/2021   15:00:56  ( -68.93, 132.87)    3.22                10
 10/28/2021   15:51:29   (  68.75, -59.65) 10/28/2021   15:50:24  (  68.75, -59.71)    2.47                65