Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 2.  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)
 05/03/2021   02:04:43   ( -68.59, -32.96) 05/03/2021   02:05:33  ( -68.57, -32.90)    3.18                50
 05/03/2021   02:55:26   (  68.41, 134.59) 05/03/2021   02:55:01  (  68.41, 134.54)    2.06                25
 05/03/2021   03:45:53   ( -67.52, -56.98) 05/03/2021   03:44:44  ( -67.57, -58.80)   77.49                69
 05/05/2021   17:31:11   (  69.34, -85.54) 05/05/2021   17:32:19  (  69.27, -83.77)   69.99                68
 05/05/2021   18:21:39   ( -68.50,  82.92) 05/05/2021   18:22:01  ( -68.50,  82.89)    1.76                22
 05/05/2021   19:12:23   (  68.38,-109.61) 05/05/2021   19:11:28  (  68.38,-109.61)    0.43                55
 05/08/2021   09:47:54   (  68.57,  31.29) 05/08/2021   09:48:58  (  68.58,  31.23)    2.50                64
 05/08/2021   10:38:36   ( -68.47,-161.28) 05/08/2021   10:38:28  ( -68.47,-161.26)    0.78                 8
 05/08/2021   11:29:12   (  67.92,   6.74) 05/08/2021   11:28:01  (  68.02,   5.84)   38.78                71
 05/11/2021   02:04:50   (  68.54, 147.08) 05/11/2021   02:05:24  (  68.54, 147.07)    0.45                34
 05/11/2021   02:55:32   ( -68.45, -45.48) 05/11/2021   02:54:54  ( -68.44, -45.42)    2.54                38
 05/13/2021   17:31:09   ( -68.95,  94.98) 05/13/2021   17:32:20  ( -68.84,  95.68)   30.57                71
 05/13/2021   18:21:47   (  68.52, -97.13) 05/13/2021   18:21:51  (  68.50, -97.10)    2.66                 4
 05/13/2021   19:12:28   ( -68.37,  70.39) 05/13/2021   19:11:22  ( -68.35,  70.35)    3.07                66