Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 10 21.  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)
 10/23/2021   06:26:52   ( -69.15, -99.03) 10/23/2021   06:28:03  ( -69.11, -98.68)   14.56                71
 10/23/2021   07:17:33   (  68.87,  68.66) 10/23/2021   07:17:32  (  68.88,  68.68)    1.89                 1
 10/23/2021   08:08:15   ( -68.77,-123.89) 10/23/2021   08:07:02  ( -68.77,-123.82)    2.76                73
 10/25/2021   22:43:47   ( -68.92,  17.04) 10/25/2021   22:44:31  ( -68.93,  16.98)    2.73                44
 10/25/2021   23:34:31   (  68.80,-175.49) 10/25/2021   23:33:58  (  68.82,-175.52)    1.94                33
 10/28/2021   14:10:11   (  69.38, -35.16) 10/28/2021   14:11:22  (  69.25, -34.37)   34.63                71
 10/28/2021   15:00:46   ( -68.91, 132.82) 10/28/2021   15:00:56  ( -68.92, 132.85)    1.42                10
 10/28/2021   15:51:30   (  68.79, -59.72) 10/28/2021   15:50:23  (  68.80, -59.66)    2.44                67
 10/31/2021   06:27:02   (  69.00,  81.13) 10/31/2021   06:27:50  (  69.00,  81.20)    2.67                48
 10/31/2021   07:17:43   ( -68.85,-111.34) 10/31/2021   07:17:21  ( -68.84,-111.37)    1.57                22
 10/31/2021   08:08:10   (  67.82,  57.30) 10/31/2021   08:07:03  (  67.88,  55.13)   91.48                67
 11/02/2021   21:53:29   ( -69.75,  28.52) 11/02/2021   21:54:38  ( -69.64,  30.28)   69.00                69
 11/02/2021   22:43:59   (  68.89,-162.96) 11/02/2021   22:44:16  (  68.91,-163.03)    3.50                17
 11/02/2021   23:34:41   ( -68.79,   4.50) 11/02/2021   23:33:46  ( -68.81,   4.48)    2.10                55