Quadrantids

January Meteors.

Based upon the reflections of the Graves radar signal 2546 meteors were detected in January.

The daily average was 82 with a maximum of 289 on 4thJan.

The hourly average was 3.4 with  an hourly max of 51 between 3-4 am on 4th Jan, there was a secondary peak of max 21 between 10-11 am on the same day.

The peak activity on the 4th represented the Quadrantid meteor shower peaking at 3-4am , Sky at Night (jan) magazine suggested that the secondary maximum would be due to the debris from the 1974 visitation of comet 46P which was visible during January.

There are several minor showers also present during January.

Below are the daily and hourly plots for January, the two distinct peaks are visible on the hourly count, the red bar indicates where Graves was off line between 17:00 on the 13th to 07:00 on the 14th.

The last plot is a comparison with the 2018 data.

January Meteors.

The main meteor activity this month around the 3rd/4th of January with the Quadrantids peaking in the early hours of the 4th Jan. Graves decided to go off line between 09:00 and 15:00 on the 3rd Jan. ( see red block on hourly plot).

The average hourly rate during the month was 2.2, with an average daily rate of 52.3. The variations during the month are due to the combinations of minor showers during the month, these are listed in table below.

I omitted the total count for 2017 in my new year post, this was 16,727with an average daily count of 46. It will be interesting to see what Andy’s magnetic collector picks up over the year.

 

Radiant Duration Maximum
Zeta Aurigids December 11-January 21 Dec. 31/Jan. 1
January Boötids January 9-18 Jan. 16-18
Delta Cancrids (DCA) December 14-February 14 Jan. 17
Canids January 13-30 Jan. 24/25
Eta Carinids January 14-27 Jan. 21/22
Eta Craterids January 11-22 Jan. 16/17
January Draconids January 10-24 Jan. 13-16
Rho Geminids December 28-January 28 Jan. 8/9
Alpha Hydrids January 15-30 Jan. 20/21
Alpha Leonids January 13-February 13 Jan. 24-31
Gamma Velids January 1-17 Jan. 5-8

 

January Meteors

Hi, here are the radar  meteor observations for January.

The main activity was the Quadrantids on Jan3/4, there were several other peaks of activity caused by the combination of other minor showers during the month, particularly:

Jan 5th-9th , Gamma Velids and Rho Geminids

Jan 16th – 18th Jan Bootids, Eta Craterids, Jan Draconids.

Jan 20th -31st Canids, Eta Carinids, Alpha Hydrids, Alpa leonids,

The coming months of February and march have no major showers, just a snall number of minor showers. The next main shower will be in April the Lyrids  peaking on April 22nd.

 

Pete H

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