Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 11 20.  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)
 11/21/2017   10:39:45   ( -68.39,-161.30) 11/21/2017   10:40:33  ( -68.42,-161.26)    2.91                48
 11/21/2017   11:30:29   (  68.27,   6.17) 11/21/2017   11:30:01  (  68.24,   6.18)    3.19                28
 11/21/2017   12:20:54   ( -67.27, 174.71) 11/21/2017   12:19:46  ( -67.30, 172.73)   85.11                68
 11/24/2017   02:06:12   (  69.26, 145.99) 11/24/2017   02:07:20  (  69.16, 147.93)   77.37                68
 11/24/2017   02:56:39   ( -68.36, -45.49) 11/24/2017   02:57:03  ( -68.34, -45.47)    3.07                24
 11/24/2017   03:47:22   (  68.19, 122.04) 11/24/2017   03:46:30  (  68.22, 122.03)    3.01                52
 11/26/2017   18:22:51   (  68.43, -97.12) 11/26/2017   18:24:02  (  68.41, -97.13)    2.35                71
 11/26/2017   19:13:32   ( -68.28,  70.38) 11/26/2017   19:13:32  ( -68.31,  70.38)    3.07                 0
 11/26/2017   20:04:14   (  68.06,-122.03) 11/26/2017   20:03:01  (  68.08,-122.25)    9.44                73
 11/29/2017   10:39:44   (  68.36,  18.74) 11/29/2017   10:40:31  (  68.38,  18.72)    2.57                47
 11/29/2017   11:30:26   ( -68.26,-173.82) 11/29/2017   11:30:01  ( -68.28,-173.77)    3.01                25
 11/29/2017   12:20:52   (  67.17,  -5.18) 11/29/2017   12:19:45  (  67.20,  -7.35)   93.71                67
 12/02/2017   02:06:11   ( -69.40, -34.22) 12/02/2017   02:07:17  ( -69.29, -31.89)   92.25                66
 12/02/2017   02:56:37   (  68.34, 134.54) 12/02/2017   02:56:59  (  68.34, 134.56)    0.97                22
 12/02/2017   03:47:18   ( -68.18, -57.95) 12/02/2017   03:46:30  ( -68.19, -57.99)    1.89                48