Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 2 22.  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)
 02/22/2021   18:21:58   (  68.46, -97.10) 02/22/2021   18:22:51  (  68.46, -97.10)    0.39                53
 02/22/2021   19:12:39   ( -68.32,  70.40) 02/22/2021   19:12:21  ( -68.35,  70.40)    2.74                18
 02/22/2021   20:03:08   (  67.44,-121.20) 02/22/2021   20:02:00  (  67.51,-122.93)   73.83                68
 02/25/2021   10:38:51   (  68.42,  18.73) 02/25/2021   10:39:19  (  68.39,  18.70)    3.19                28
 02/25/2021   11:29:32   ( -68.28,-173.77) 02/25/2021   11:28:49  ( -68.29,-173.80)    1.28                43
 02/28/2021   02:05:06   ( -68.76, -33.26) 02/28/2021   02:06:17  ( -68.66, -32.74)   23.99                71
 02/28/2021   02:55:45   (  68.37, 134.56) 02/28/2021   02:55:47  (  68.37, 134.56)    0.09                 2
 02/28/2021   03:46:26   ( -68.23, -57.94) 02/28/2021   03:45:18  ( -68.22, -58.00)    2.96                68
 03/02/2021   18:21:55   ( -68.45,  82.92) 03/02/2021   18:22:48  ( -68.48,  82.91)    2.43                53
 03/02/2021   19:12:39   (  68.33,-109.62) 03/02/2021   19:12:15  (  68.35,-109.59)    2.60                24
 03/02/2021   20:03:07   ( -67.49,  58.75) 03/02/2021   20:01:58  ( -67.53,  57.09)   70.71                69
 03/05/2021   09:48:25   (  69.47,  29.98) 03/05/2021   09:49:31  (  69.39,  32.31)   91.35                66
 03/05/2021   10:38:49   ( -68.41,-161.26) 03/05/2021   10:39:17  ( -68.40,-161.30)    2.59                28
 03/05/2021   11:29:33   (  68.30,   6.20) 03/05/2021   11:28:44  (  68.27,   6.19)    2.43                49
 03/08/2021   02:05:02   (  68.58, 146.98) 03/08/2021   02:06:12  (  68.58, 147.16)    7.19                70
 03/08/2021   02:55:42   ( -68.38, -45.44) 03/08/2021   02:55:44  ( -68.37, -45.46)    0.99                 2
 03/08/2021   03:46:24   (  68.15, 122.16) 03/08/2021   03:45:12  (  68.19, 121.97)    8.81                72