David's Astronomy Pages (All Sky Camera) Aurora on night 2023-03-14/ 2023-03-15

Aurora  2023-02-08

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Aurora 2023-03-23

Aurora

Notes

Pictures Videos Summary Plot Magnetometer Stack Plots (for reference) Planetary K-Index Plot (for reference) Aurora Forecast, NOAA/Ovation (for reference)

- Aurora activity visible from NE Scotland on the night of 2023-03-14 / 2023-03-15, beginning at 19:50 UT, with last activity at around 04:30 UT.  Peak (brightest) activity was at 23:40 UT, 01:20 UT & 03:40 UT   - Scandinavia magnetometers indicate activity beginning around 2023-03-14 20:15 UT and lasting until around 2023-03-15 05:00 UT,  with peaks of activity at 22:05 UT,  23:30 UT and 03:30-04:00 UT.    - It is noted that the start of activity seen from the observatory (though partly covered by cloud) seems to have begun earlier than might have been predicted by the Scandinavia magnetometer stack plots.      - Telescope Images from 2023-03-14 >>

Pictures

Panoramic View - Northern Sky

2023-03-14 19:54 UT First indications of aurora activity behind clouds with top of auroral arc at 8-9 deg altitude and and rays to 12-15 deg altitude

2023-03-14 20:36 UT Possible aurora activity but continuing to be hidden by cloud along the horizon Double event (most like satellite flashes) at 44-48 deg altitude in WNW sky

2023-03-14 22:08 UT Auroral arc developing, partly hidden by cloud

2023-03-14 22:13 UT Distinct rays developing reaching to 15 deg altitude.

2023-03-14 22:23 UT Aurora arc brightening

2023-03-14 22:44 UT Aurora arc. Cloud clearing

2023-03-14 23:20 UT Bright activity

2023-03-14 23:31 UT Aurora arc climbing up to 10 deg altitude and separating into two.

2023-03-14 23:35 UT Lower arc brightening

2023-03-14 23:38 UT Curtain moving along lower arc

2023-03-14 23:41 UT Prominant rays,  in N-NNW sky, strong brightening  in NNW sky. Upper arc reaching to 12 deg altitude in N-NNE sky

2023-03-14 23:48 UT Arc brightening, with some diffuse rays. Again bright activity in NNW direction

2023-03-14 23:53 UT Aurora activity with diffuse rays

2023-03-15 00:08 UT Auroral arc temporarily fading, but still with rays up to 15 deg altitude

2023-03-15 00:54 UT Auroral arc with foreground clouds

2023-03-15 01:14 UT Arc brightening, foreground clouds continuing in NNW sky.

2023-03-15 01:37 UT Auroral arc with foreground clouds. Rays in NNE sky

2023-03-15 01:57 UT Auroral arc, with curtain / wave developing. Rays in NNE sky

2023-03-15 02:17 UT Arc with curtains developing

2023-03-15 02:31 UT Auroral arc thininng.  Satellite flash or meteor in NE sky at 35 deg altitude.

2023-03-15 02:43 UT Auroral arc with curtains moving and rays to 12 deg altitude.

2023-03-15 02:56 UT Auroral curtains and associated rays to 15-16 deg altitude, moving in eastward direction (left to right)

2023-03-15 03:05 UT Curtains moving in eastward direction (left to right)

2023-03-15 03:18 UT Prominant rays to 18 deg altitude moving eastwards (left to right)

2023-03-15 03:26 UT Prominant rays moving eastwards (left to right)

2023-03-15 03:34 UT Brightning in activity, more chaotic (start of a disconnection event ?)

2023-03-15 03:35 UT Brightening / increase in activity. Rays to at least 25 deg altitude.

2023-03-15 03:40 UT Rays across entire nothern horizon (NW to NE)

2023-03-15 04:00 UT Aurora fading,but rays (faint) still reaching to 25 deg altitude

2023-03-15 04:00 UT Arc faded significant, but still faint diffuse rays up to 25-30 deg altitude

2023-03-15 04:29 UT Temporary re-appearance of aurora arc/activity

30s exposures taken with Oculus All Sky Camera

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 Videos

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Night Summary Plot

Night Summary Plot - North Sky (2023-03-14 / 2023-03-15 ) Times on plot are local times (GMT = UTC +00h ) Activity visible on keogram 19:50 to 04:30 UT, partly hidden by cloud, with peak (brightest) activity at 23:40 UT, 01:20 UT & 03:40 UT

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Magnetometer Stack Plots (for reference)

Magnetometer Stack Plots from Scandinavia (ordered by latitude) H Component - 2023-03-14 / 2023-03-15 Original data from Tromsø Geophysical Observatory (TGO), DTU Space (Technical University of Denmark) and Finnish Meteorological Institute (FMI, displayed on SpaceWeatherLive http://www.spaceweatherlive.com/en/auroral-activity/magnetometers). Note: Geomagnetometer activity at rvk (Rorvik, 64.95N), dob (Dombas, 62.07N), sol (Solund, 61.08N) and kar (Karmoy, 59.21N) stations are used as indicators for potential auroral activity that may be visible from my Observatory situated at latitude 57.32N  (Map of Stations)

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Planetary K-Index Plot (for reference)

Estimated 3 hour Planetary K-Index (NOAA) (K indices of 5 or greater indicate storm-level geomagnetic activity around earth)  (from http://services.swpc.noaa.gov) planetary-k-index_2023-03-14 / 2023-03-15 TBA

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Aurora Forecast, NOAA/Ovation (for reference)

Aurora Forecast at 2023-03-14 23:00 UT for 23:55 UT (From Space Weather Prediction Centre,  http://www.swpc.noaa.gov )

Aurora Forecast at 2023-03-15 02:00 UT for 02:56 UT (From Space Weather Prediction Centre,  http://www.swpc.noaa.gov )

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