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NLC 2013-06-07/08

BAA report

The report to the BAA Aurora Section gives an overview of the night, which times were cloudy, free of NLC, or with sightings of NLC.

Name of observer: Horst Meyerdierks
Location: Royal Observatory Edinburgh, 55.9N 3.2W
          unattended compact camera with limited field of view
          A ~325-35, h ~0-40; images every 15 min
Date: 2013-06-07/08

   UT     forms  bright   height   azimuth   comments
                  ness   top bot  left rght  e.g. weather
--------  -----  ------  --- ---  ---- ----  --------------------------------
21:30:00  0                                  cloud to h 5
21:45:01  0                                  cloud to h 5
22:00:01  0                                  cloud to h 5
22:15:02  0                                  cloud to h 5
22:30:02  0                                  cloud to h 5
22:45:10  0                                  cloud to h 10
23:00:19  0                                  cloud to h 10 or 15
23:15:32  X                                  cloud to h 15
23:30:19  NLC       4     10                 through cloud
23:45:32  I,II      5     12                 through cloud
00:00:32  I         5     12                 through cloud
00:15:32  NLC       5     15                 through cloud
00:30:31  I,III     5     15                 through cloud
00:45:19  NLC       5     15                 through cloud
01:00:18  NLC       4     15                 through cloud
01:15:19  I         4     15                 through cloud
01:30:10  I         4     15                 through cloud
01:45:03  NLC       3     15                 through cloud
02:00:01  X                                  cloud to h 15
02:15:02  X                                  cloud to h 20, higher on left
02:30:01  X                                  widespread cloud
02:45:02  X                                  widespread cloud

forms: I: veil
       II: bands
       III: waves
       IV: whirls
       NLC: other than or multiple of I-IV
       0: no NLC
       X: no decision possible (mist, cloud etc.)
brightness: 1: very weak
            2: clearly detected
            3: clearly visible
            4: very bright
            5: extremely bright

NLCnet report

The periods of positive sightings of NLC are reported to the NLC Observers' Home Page:

Name: Horst Meyerdierks
Country: Scotland
Location: Edinburgh
Date: 2013/06/07-08
Start: 23:30
End: 01:45
Forms: I,II,III
Max elevation:  15
Max brightness: 5
Comments:
<a href="http://www.chiandh.me.uk/nlccam/20130607-08.shtml">Images</a>.

forms: I: veil
       II: bands
       III: waves
       IV: whirls
       O: other than or multiple of I-IV
brightness: 1: very weak
            2: clearly detected
            3: clearly visible
            4: very bright
            5: extremely bright

Images

Listed below are all images taken, unprocessed.

   UT      exp    A    hSun  h15   h85  stretch  image  
-------- ------ ----- ----- ----- -----  ----- ---------
21:30:00  0.017 323.2  -4.1  23.1 174.2  0-255 q4072.jpg
21:30:04  0.033 323.2  -4.1  22.6 174.2  0-255 q4073.jpg
21:45:01  0.067 326.4  -5.3   4.1 171.0  0-255 q4074.jpg
21:45:05  0.125 326.5  -5.3   4.1 170.9  0-255 q4075.jpg
22:00:01  0.125 329.7  -6.4   1.5 166.0  0-255 q4076.jpg
22:00:05  0.250 329.7  -6.4   1.5 165.9  0-255 q4077.jpg
22:15:02  0.250 333.1  -7.4   0.2 156.8  0-255 q4078.jpg
22:15:06  0.500 333.1  -7.4   0.2 156.7  0-255 q4079.jpg
22:30:02  1.000 336.4  -8.3  -0.6 135.2  0-255 q4080.jpg
22:30:08  2.000 336.5  -8.3  -0.7 135.0  0-255 q4081.jpg
22:45:02  1.000 339.8  -9.1  -1.3  84.6  0-255 q4082.jpg
22:45:10  2.000 339.9  -9.1  -1.3  84.1  0-255 q4083.jpg
23:00:03  1.000 343.3  -9.8  -1.8  44.1  0-255 q4084.jpg
23:00:10  2.000 343.3  -9.8  -1.8  43.9  0-255 q4085.jpg
23:00:19  4.000 343.3  -9.8  -1.8  43.7  0-255 q4086.jpg
23:15:02  1.000 346.7 -10.3  -2.1  28.8  0-255 q4087.jpg
23:15:09  2.000 346.8 -10.3  -2.1  28.7  0-255 q4088.jpg
23:15:18  4.000 346.8 -10.3  -2.1  28.6  0-255 q4089.jpg
23:15:32  8.000 346.9 -10.3  -2.1  28.5  0-255 q4090.jpg
23:30:03  1.000 350.2 -10.7  -2.4  22.1  0-255 q4091.jpg
23:30:10  2.000 350.3 -10.7  -2.4  22.1  0-255 q4092.jpg
23:30:19  4.000 350.3 -10.8  -2.4  22.1  0-255 q4093.jpg
23:30:32  8.000 350.3 -10.8  -2.4  22.0  0-255 q4094.jpg
23:45:02  1.000 353.7 -11.0  -2.6  18.9  0-255 q4095.jpg
23:45:09  2.000 353.8 -11.0  -2.6  18.9  0-255 q4096.jpg
23:45:18  4.000 353.8 -11.0  -2.6  18.9  0-255 q4097.jpg
23:45:32  8.000 353.9 -11.0  -2.6  18.8  0-255 q4098.jpg
23:45:53 15.000 353.9 -11.0  -2.6  18.8  0-255 q4099.jpg
00:00:03  1.000 357.3 -11.2  -2.7  17.4  0-255 q4100.jpg
00:00:10  2.000 357.3 -11.2  -2.7  17.4  0-255 q4101.jpg
00:00:19  4.000 357.3 -11.2  -2.7  17.4  0-255 q4102.jpg
00:00:32  8.000 357.4 -11.2  -2.7  17.4  0-255 q4103.jpg
00:00:54 15.000 357.5 -11.2  -2.7  17.4  0-255 q4104.jpg
00:15:02  1.000   0.8 -11.2  -2.7  17.1  0-255 q4105.jpg
00:15:10  2.000   0.8 -11.2  -2.7  17.1  0-255 q4106.jpg
00:15:19  4.000   0.8 -11.2  -2.7  17.1  0-255 q4107.jpg
00:15:32  8.000   0.9 -11.2  -2.7  17.1  0-255 q4108.jpg
00:15:53 15.000   1.0 -11.2  -2.7  17.1  0-255 q4109.jpg
00:30:02  1.000   4.3 -11.1  -2.7  17.9  0-255 q4110.jpg
00:30:09  2.000   4.3 -11.1  -2.7  17.9  0-255 q4111.jpg
00:30:18  4.000   4.4 -11.1  -2.7  18.0  0-255 q4112.jpg
00:30:31  8.000   4.4 -11.1  -2.7  18.0  0-255 q4113.jpg
00:30:52 15.000   4.5 -11.1  -2.7  18.0  0-255 q4114.jpg
00:45:03  1.000   7.8 -10.9  -2.5  20.1  0-255 q4115.jpg
00:45:10  2.000   7.8 -10.9  -2.5  20.1  0-255 q4116.jpg
00:45:19  4.000   7.9 -10.9  -2.5  20.2  0-255 q4117.jpg
00:45:32  8.000   7.9 -10.9  -2.5  20.2  0-255 q4118.jpg
00:45:53 15.000   8.0 -10.9  -2.5  20.3  0-255 q4119.jpg
01:00:02  1.000  11.3 -10.6  -2.3  24.6  0-255 q4120.jpg
01:00:09  2.000  11.3 -10.6  -2.3  24.6  0-255 q4121.jpg
01:00:18  4.000  11.4 -10.6  -2.3  24.7  0-255 q4122.jpg
01:00:31  8.000  11.4 -10.6  -2.3  24.8  0-255 q4123.jpg
01:15:02  1.000  14.8 -10.1  -2.0  34.1  0-255 q4124.jpg
01:15:09  2.000  14.8 -10.1  -2.0  34.2  0-255 q4125.jpg
01:15:19  4.000  14.9 -10.1  -2.0  34.3  0-255 q4126.jpg
01:15:32  8.000  14.9 -10.1  -2.0  34.6  0-255 q4127.jpg
01:30:03  1.000  18.2  -9.5  -1.6  58.2  0-255 q4128.jpg
01:30:10  2.000  18.3  -9.5  -1.5  58.5  0-255 q4129.jpg
01:30:19  4.000  18.3  -9.5  -1.5  58.9  0-255 q4130.jpg
01:45:03  1.000  21.7  -8.8  -1.0 111.2  0-255 q4131.jpg
01:45:09  2.000  21.7  -8.8  -1.0 111.5  0-255 q4132.jpg
02:00:01  0.500  25.1  -7.9  -0.3 147.6  0-255 q4133.jpg
02:00:06  1.000  25.1  -7.9  -0.3 147.7  0-255 q4134.jpg
02:15:02  0.250  28.4  -7.0   0.7 161.8  0-255 q4135.jpg
02:15:06  0.500  28.4  -7.0   0.7 161.8  0-255 q4136.jpg
02:30:01  0.125  31.7  -5.9   2.4 168.5  0-255 q4137.jpg
02:30:05  0.250  31.7  -5.9   2.4 168.6  0-255 q4138.jpg
02:45:02  0.033  35.0  -4.8   7.0 172.6  0-255 q4139.jpg
02:45:05  0.067  35.0  -4.8   7.0 172.6  0-255 q4140.jpg

exp: Exposure time in seconds (200 ISO, f/2.8).
A: Azimuth of the Sun (degrees).
hSun: Altitude of the Sun (degrees, negative below horizon).
h15: Max. altitude of sunlight at 15 km height (degrees).
h85: Max. altitude of sunlight at 85 km height (degrees).
stretch: Contrast stretch (0-255 means no stretch).