Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 12 25.  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)
 12/26/2021   05:36:03   (  69.20,  93.71) 12/26/2021   05:37:07  (  69.18,  93.74)    2.67                64
 12/26/2021   06:26:44   ( -69.07, -98.79) 12/26/2021   06:26:37  ( -69.06, -98.77)    1.23                 7
 12/26/2021   07:17:21   (  68.56,  69.19) 12/26/2021   07:16:10  (  68.62,  68.32)   35.97                71
 12/28/2021   21:52:54   (  69.16,-150.45) 12/28/2021   21:53:32  (  69.17,-150.38)    3.07                38
 12/28/2021   22:43:35   ( -69.03,  17.05) 12/28/2021   22:43:03  ( -69.00,  17.04)    2.77                32
 12/31/2021   13:19:12   ( -69.83, 157.06) 12/31/2021   13:20:21  ( -69.76, 158.64)   61.36                69
 12/31/2021   14:09:44   (  69.07, -34.55) 12/31/2021   14:09:58  (  69.10, -34.60)    3.21                14
 12/31/2021   15:00:26   ( -68.99, 132.88) 12/31/2021   14:59:28  ( -68.99, 132.90)    0.85                58
 01/03/2022   05:35:52   ( -69.21, -86.27) 01/03/2022   05:36:56  ( -69.19, -86.24)    3.05                64
 01/03/2022   06:26:35   (  69.04,  81.27) 01/03/2022   06:26:23  (  69.07,  81.25)    2.95                12
 01/03/2022   07:17:09   ( -68.58,-110.79) 01/03/2022   07:15:58  ( -68.63,-111.66)   35.81                71
 01/05/2022   21:52:41   ( -69.13,  29.62) 01/05/2022   21:53:20  ( -69.15,  29.59)    2.65                39
 01/05/2022   22:43:25   (  69.02,-162.91) 01/05/2022   22:42:47  (  69.03,-162.92)    1.32                38