Simultaneous Nadir Overpasses (SNOs) Predictions  
  Prediction of SNOs between METOP-B and NPP Satellite Orbit: 
  Table of predicted SNOs for the next  14.0 days since TLE Epoch: 1/23/2021
  | Index | Date (METOP-B) | Time (METOP-B) | Lat,Lon (METOP-B) | SZA (METOP-B ) | Date (NPP) | Time (NPP) | Lat,Lon (NPP) | SZA (NPP ) | Distance(km) | Time Diff (sec) | 
  
 | 1 | 01/24/2021 | 17:27:36 | 73.45, -88.49 | 92.61 | 01/24/2021 | 17:26:29 | 73.43, -91.33 | 92.75 | 90.08 | 67 | 
 | 2 | 01/24/2021 | 18:18:20 | -73.36,  78.62 | 87.49 | 01/24/2021 | 18:17:12 | -73.38,  76.11 | 87.33 | 79.76 | 68 | 
 | 3 | 01/24/2021 | 19:09:04 | 73.13,-114.55 | 92.30 | 01/24/2021 | 19:07:53 | 73.14,-116.05 | 92.41 | 48.37 | 71 | 
 | 4 | 01/24/2021 | 19:59:48 | -73.04,  52.57 | 87.80 | 01/24/2021 | 19:58:36 | -73.08,  51.39 | 87.67 | 38.57 | 72 | 
 | 5 | 01/24/2021 | 20:50:31 | 72.86,-140.47 | 92.04 | 01/24/2021 | 20:49:17 | 72.84,-140.78 | 92.06 | 10.34 | 74 | 
 | 6 | 01/24/2021 | 21:41:15 | -72.76,  26.66 | 88.05 | 01/24/2021 | 21:40:00 | -72.78,  26.65 | 88.02 | 2.39 | 75 | 
 | 7 | 01/24/2021 | 22:31:54 | 72.78,-165.96 | 91.96 | 01/24/2021 | 22:30:46 | 72.79,-166.06 | 91.99 | 3.33 | 68 | 
 | 8 | 01/24/2021 | 23:22:37 | -72.74,   1.27 | 88.09 | 01/24/2021 | 23:21:29 | -72.74,   1.37 | 88.08 | 3.27 | 68 | 
 | 9 | 01/25/2021 | 00:13:16 | 72.76, 168.65 | 91.93 | 01/25/2021 | 00:12:15 | 72.75, 168.66 | 91.92 | 1.70 | 61 | 
 | 10 | 01/25/2021 | 01:03:58 | -72.77, -24.01 | 88.08 | 01/25/2021 | 01:02:59 | -72.74, -24.01 | 88.09 | 2.98 | 59 | 
 | 11 | 01/25/2021 | 01:54:38 | 72.74, 143.27 | 91.89 | 01/25/2021 | 01:53:45 | 72.75, 143.28 | 91.91 | 1.35 | 53 | 
 | 12 | 01/25/2021 | 02:45:20 | -72.75, -49.39 | 88.12 | 01/25/2021 | 02:44:29 | -72.75, -49.40 | 88.11 | 0.21 | 51 | 
 | 13 | 01/25/2021 | 03:35:59 | 72.77, 117.99 | 91.90 | 01/25/2021 | 03:35:15 | 72.76, 117.89 | 91.90 | 3.44 | 44 | 
 | 14 | 01/25/2021 | 04:26:42 | -72.73, -74.78 | 88.15 | 01/25/2021 | 04:25:59 | -72.75, -74.78 | 88.12 | 2.92 | 43 | 
 | 15 | 01/25/2021 | 05:17:21 | 72.75,  92.60 | 91.86 | 01/25/2021 | 05:16:45 | 72.76,  92.51 | 91.89 | 3.55 | 36 | 
 | 16 | 01/25/2021 | 06:08:03 | -72.70,-100.16 | 88.19 | 01/25/2021 | 06:07:27 | -72.71,-100.06 | 88.19 | 3.24 | 36 | 
 | 17 | 01/25/2021 | 06:58:42 | 72.73,  67.22 | 91.82 | 01/25/2021 | 06:58:13 | 72.72,  67.23 | 91.82 | 1.08 | 29 | 
 | 18 | 01/25/2021 | 07:49:24 | -72.73,-125.44 | 88.18 | 01/25/2021 | 07:48:57 | -72.71,-125.45 | 88.20 | 2.46 | 27 | 
 | 19 | 01/25/2021 | 08:40:04 | 72.70,  41.83 | 91.79 | 01/25/2021 | 08:39:43 | 72.72,  41.84 | 91.81 | 1.98 | 21 | 
 | 20 | 01/25/2021 | 09:30:46 | -72.71,-150.83 | 88.22 | 01/25/2021 | 09:30:27 | -72.72,-150.83 | 88.21 | 0.55 | 19 | 
 | 21 | 01/25/2021 | 10:21:25 | 72.73,  16.55 | 91.80 | 01/25/2021 | 10:21:13 | 72.73,  16.46 | 91.80 | 3.24 | 12 | 
 | 22 | 01/25/2021 | 11:12:08 | -72.69,-176.21 | 88.25 | 01/25/2021 | 11:11:57 | -72.72,-176.22 | 88.22 | 3.45 | 11 | 
 | 23 | 01/25/2021 | 12:02:47 | 72.71,  -8.83 | 91.76 | 01/25/2021 | 12:02:42 | 72.68,  -8.82 | 91.73 | 3.39 | 5 | 
 | 24 | 01/25/2021 | 12:53:30 | -72.67, 158.41 | 88.29 | 01/25/2021 | 12:53:26 | -72.68, 158.50 | 88.29 | 3.27 | 4 | 
 | 25 | 01/25/2021 | 13:44:09 | 72.69, -34.22 | 91.72 | 01/25/2021 | 13:44:12 | 72.69, -34.21 | 91.72 | 0.49 | 3 | 
 | 26 | 01/25/2021 | 14:34:51 | -72.70, 133.13 | 88.28 | 01/25/2021 | 14:34:56 | -72.68, 133.12 | 88.30 | 1.94 | 5 | 
 | 27 | 01/25/2021 | 15:25:31 | 72.67, -59.60 | 91.69 | 01/25/2021 | 15:25:42 | 72.69, -59.59 | 91.71 | 2.62 | 11 | 
 | 28 | 01/25/2021 | 16:16:13 | -72.68, 107.74 | 88.32 | 01/25/2021 | 16:16:26 | -72.69, 107.73 | 88.31 | 1.07 | 13 | 
 | 29 | 01/25/2021 | 17:06:52 | 72.70, -84.88 | 91.70 | 01/25/2021 | 17:07:12 | 72.70, -84.98 | 91.70 | 3.16 | 20 | 
 | 30 | 01/25/2021 | 17:57:35 | -72.65,  82.36 | 88.36 | 01/25/2021 | 17:57:55 | -72.64,  82.45 | 88.38 | 3.54 | 20 | 
 | 31 | 01/25/2021 | 18:48:14 | 72.67,-110.27 | 91.66 | 01/25/2021 | 18:48:41 | 72.65,-110.26 | 91.63 | 2.75 | 27 | 
 | 32 | 01/25/2021 | 19:38:57 | -72.63,  56.97 | 88.39 | 01/25/2021 | 19:39:25 | -72.64,  57.07 | 88.39 | 3.37 | 28 | 
 | 33 | 01/25/2021 | 20:29:36 | 72.65,-135.65 | 91.62 | 01/25/2021 | 20:30:11 | 72.65,-135.64 | 91.62 | 0.38 | 35 | 
 | 34 | 01/25/2021 | 21:20:18 | -72.66,  31.69 | 88.38 | 01/25/2021 | 21:20:55 | -72.65,  31.68 | 88.40 | 1.43 | 37 | 
 | 35 | 01/25/2021 | 22:10:58 | 72.63,-161.04 | 91.59 | 01/25/2021 | 22:11:41 | 72.66,-161.03 | 91.60 | 3.26 | 43 | 
 | 36 | 01/25/2021 | 23:01:40 | -72.64,   6.31 | 88.42 | 01/25/2021 | 23:02:25 | -72.65,   6.30 | 88.42 | 1.61 | 45 | 
 | 37 | 01/25/2021 | 23:52:19 | 72.66, 173.68 | 91.59 | 01/25/2021 | 23:53:11 | 72.66, 173.59 | 91.59 | 3.24 | 52 | 
 | 38 | 01/26/2021 | 00:43:02 | -72.62, -19.07 | 88.46 | 01/26/2021 | 00:43:54 | -72.61, -18.98 | 88.48 | 3.24 | 52 | 
 | 39 | 01/26/2021 | 01:33:41 | 72.64, 148.30 | 91.56 | 01/26/2021 | 01:34:40 | 72.62, 148.31 | 91.52 | 2.10 | 59 | 
 | 40 | 01/26/2021 | 02:24:24 | -72.60, -44.46 | 88.49 | 01/26/2021 | 02:25:24 | -72.61, -44.37 | 88.50 | 3.54 | 60 | 
 | 41 | 01/26/2021 | 03:15:03 | 72.62, 122.91 | 91.52 | 01/26/2021 | 03:16:10 | 72.62, 122.92 | 91.51 | 0.93 | 67 | 
 | 42 | 01/26/2021 | 04:05:45 | -72.63, -69.74 | 88.49 | 01/26/2021 | 04:06:54 | -72.62, -69.75 | 88.51 | 0.95 | 69 | 
 | 43 | 01/26/2021 | 04:56:26 | 72.54,  97.43 | 91.44 | 01/26/2021 | 04:57:39 | 72.58,  97.64 | 91.44 | 8.12 | 73 | 
 | 44 | 01/26/2021 | 05:47:09 | -72.50, -95.33 | 88.61 | 01/26/2021 | 05:48:22 | -72.52, -94.93 | 88.63 | 13.44 | 73 | 
 | 45 | 01/26/2021 | 06:37:53 | 72.26,  71.54 | 91.18 | 01/26/2021 | 06:39:03 | 72.28,  72.87 | 91.10 | 45.05 | 70 | 
 | 46 | 01/26/2021 | 07:28:37 | -72.18,-121.31 | 88.91 | 01/26/2021 | 07:29:47 | -72.27,-119.81 | 88.92 | 52.13 | 70 | 
 | 47 | 01/26/2021 | 08:19:21 | 71.93,  45.57 | 90.87 | 01/26/2021 | 08:20:27 | 71.97,  48.07 | 90.75 | 86.53 | 66 | 
 | 48 | 01/26/2021 | 09:10:04 | -71.90,-147.18 | 89.17 | 01/26/2021 | 09:11:10 | -71.92,-144.51 | 89.32 | 92.23 | 66 | 
Figure of METOP-B and NPP satellite orbits during SNOs since TLE Epoch: 1/23/2021 
 Download SNOs between METOP-B and NPP since TLE EPOCH: 01/23/2021 in txt file. 
 Historial Predications of SNOs between METOP-B and NPP
 Download SNOs between METOP-B and NPP since TLE EPOCH: 01/23/2021 in txt file. 
 Historial Predications of SNOs between METOP-B and NPP