Simultaneous Nadir Overpasses (SNOs) between METOP-B and NPP
TLE Epoch: 2021 6 15.  Predictions up to the next  14.0 days:

     Date     Time(METOP-B) METOP-B Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/28/2021   06:21:52   ( -73.48,-101.90) 06/28/2021   06:20:46  ( -73.48,-105.01)   98.37                66
 06/28/2021   07:12:36   (  73.24,  64.89) 06/28/2021   07:11:27  (  73.25,  62.83)   66.06                69
 06/28/2021   08:03:20   ( -73.16,-127.95) 06/28/2021   08:02:10  ( -73.18,-129.72)   56.86                70
 06/28/2021   08:54:04   (  72.92,  38.85) 06/28/2021   08:52:51  (  72.95,  38.11)   24.56                73
 06/28/2021   09:44:47   ( -72.89,-153.88) 06/28/2021   09:43:34  ( -72.89,-154.45)   18.72                73
 06/28/2021   10:35:29   (  72.74,  13.15) 06/28/2021   10:34:17  (  72.75,  13.15)    0.25                72
 06/28/2021   11:26:12   ( -72.72,-179.57) 06/28/2021   11:25:01  ( -72.74,-179.51)    2.68                71
 06/28/2021   12:16:51   (  72.72, -12.23) 06/28/2021   12:15:47  (  72.75, -12.23)    2.68                64
 06/28/2021   13:07:33   ( -72.75, 155.15) 06/28/2021   13:06:31  ( -72.74, 155.11)    2.02                62
 06/28/2021   13:58:12   (  72.76, -37.50) 06/28/2021   13:57:17  (  72.75, -37.60)    3.35                55
 06/28/2021   14:48:55   ( -72.73, 129.77) 06/28/2021   14:48:01  ( -72.74, 129.73)    1.52                54
 06/28/2021   15:39:34   (  72.74, -62.88) 06/28/2021   15:38:46  (  72.70, -62.88)    3.74                48
 06/28/2021   16:30:17   ( -72.71, 104.39) 06/28/2021   16:29:30  ( -72.69, 104.46)    3.24                47
 06/28/2021   17:20:56   (  72.72, -88.27) 06/28/2021   17:20:16  (  72.70, -88.26)    1.32                40
 06/28/2021   18:11:39   ( -72.69,  79.01) 06/28/2021   18:11:00  ( -72.69,  79.08)    2.31                39
 06/28/2021   19:02:18   (  72.70,-113.65) 06/28/2021   19:01:46  (  72.71,-113.64)    1.20                32
 06/28/2021   19:53:00   ( -72.72,  53.73) 06/28/2021   19:52:30  ( -72.70,  53.70)    3.29                30
 06/28/2021   20:43:40   (  72.68,-139.03) 06/28/2021   20:43:16  (  72.71,-139.02)    3.62                24
 06/28/2021   21:34:22   ( -72.70,  28.35) 06/28/2021   21:34:00  ( -72.70,  28.32)    1.25                22
 06/28/2021   22:25:01   (  72.71,-164.30) 06/28/2021   22:24:46  (  72.71,-164.40)    3.08                15
 06/28/2021   23:15:44   ( -72.68,   2.97) 06/28/2021   23:15:30  ( -72.70,   2.94)    2.03                14
 06/29/2021   00:06:23   (  72.69, 170.32) 06/29/2021   00:06:15  (  72.66, 170.33)    2.85                 8
 06/29/2021   00:57:06   ( -72.66, -22.41) 06/29/2021   00:56:59  ( -72.65, -22.33)    2.86                 7
 06/29/2021   01:47:45   (  72.67, 144.94) 06/29/2021   01:47:45  (  72.66, 144.95)    0.61                 0