Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 8.  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)
 05/08/2021   09:47:54   (  68.60,  31.24) 05/08/2021   09:48:57  (  68.60,  31.26)    0.98                63
 05/08/2021   10:38:35   ( -68.46,-161.27) 05/08/2021   10:38:27  ( -68.48,-161.25)    2.28                 8
 05/08/2021   11:29:12   (  67.96,   6.69) 05/08/2021   11:28:01  (  67.98,   5.80)   37.08                71
 05/11/2021   02:04:51   (  68.58, 147.03) 05/11/2021   02:05:24  (  68.57, 147.10)    3.03                33
 05/11/2021   02:55:32   ( -68.44, -45.47) 05/11/2021   02:54:54  ( -68.46, -45.40)    3.46                38
 05/13/2021   17:31:09   ( -68.94,  95.00) 05/13/2021   17:32:21  ( -68.81,  95.64)   29.42                72
 05/13/2021   18:21:47   (  68.50, -97.10) 05/13/2021   18:21:52  (  68.47, -97.13)    3.26                 5
 05/13/2021   19:12:28   ( -68.36,  70.40) 05/13/2021   19:11:22  ( -68.37,  70.37)    1.83                66
 05/16/2021   09:48:00   ( -68.59,-148.77) 05/16/2021   09:48:51  ( -68.61,-148.73)    2.11                51
 05/16/2021   10:38:43   (  68.42,  18.76) 05/16/2021   10:38:19  (  68.43,  18.70)    2.60                24
 05/16/2021   11:29:10   ( -67.52,-172.80) 05/16/2021   11:28:02  ( -67.60,-174.63)   78.57                68
 05/19/2021   01:14:28   (  69.42, 158.54) 05/19/2021   01:15:36  (  69.28, 160.36)   73.20                68
 05/19/2021   02:04:55   ( -68.52, -32.91) 05/19/2021   02:05:18  ( -68.51, -32.97)    2.87                23
 05/19/2021   02:55:39   (  68.40, 134.55) 05/19/2021   02:54:45  (  68.38, 134.52)    2.40                54
 05/21/2021   17:31:10   (  68.60, -84.57) 05/21/2021   17:32:14  (  68.61, -84.60)    2.17                64
 05/21/2021   18:21:52   ( -68.49,  82.89) 05/21/2021   18:21:44  ( -68.52,  82.92)    2.83                 8
 05/21/2021   19:12:29   (  68.01,-109.18) 05/21/2021   19:11:17  (  68.05,-109.99)   34.03                72