ursid.seti.org

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IP Address 104.244.248.67

META INFORMATION

Title

Ursids 2007 - The NASA Ursid Multi-Instrument Aircraft Campaign

Description

The meteors are called

Keywords

Ursids, Ursid, meteor+shower, 8P/Tuttle, meteor, meteors, meteor shower, storm, storms, showers, shooting stars, December, 2007, comet orbit, comet, Halley+type+comet, comets, NASA, NASA Ames Research Center, airborne astronomy, atmosphere

Content Type

KEYWORDS AND KEYWORD DENSITY

No	Keyword	Website Count
1	Meteor	2
2	Storm	2
3	Comet	3
4	Nasa	4
5	Atmosphere	2

GENERAL HTML INFORMATION

Type	Status
HTML 5
Responsive Website

HTML SIZE INFORMATION

Text / Code Ratio 64.40 %

ursid.seti.org has a website text/code ratio of 64.40 %. Search engine crawlers tend to not pick up pages with inadequate content.

IMPORTANT HTML TAGS AND COUNTS

Titles

No	Text
1	Key dates
2	Ursids at a glance
3	Ursid shower highlights
4	Campaign highlights

No	Text
1	News (2)
2	First reports
3	Big old comet the size of halley returns
4	Could lead to unusual meteor shower
5	The ursid mac mission
6	The predictions
7	Calculate the rate of meteors at your site

No	Text
1	8p/tuttle - ımage of the day

Text Styling

STRONG0
B29
EM1
I12
U0
CITE0

No	Text
1	2007 December 21/22:
2	December-January:
3	Media
4	Date:
5	Peak time:
6	Width:
7	Peak rate:
8	Meteor brightness:
9	Shower radiant:
10	Entry speed:
11	Visible from:
12	Best viewing:
13	Best direction:
14	Best time:
15	URSID MAC mission statement:
16	More unusual Ursid activity:
17	Choose the shower, the date, and a nearby location.
18	Disclaimer:
19	LINKS:
20	Follow the shaddow
21	Ursid MAC
22	Flux
23	Models
24	Spectroscopy (3)
25	Size distribution
26	Imaging
27	Cosmic rays

No	Text
1	Explanation: dE-dR = Miss-distance between center trail and Earth orbit (in astronomical units). Delta_a = Position along the comet trail, expressed as the difference in semi-major axis of the original meteoroid orbit shortly after ejection compared to that of the comet(in astronomical units). f_M = Dilution factor due to spreading of the grains. Sol. Long. = Solar longitude (J2000) of peak of shower. UT = Universal Time (hours:minutes). ZHR = peak Zenith Hourly Rate of the outburst, number of meteors visible to a naked eye observer under good observing circ***stances and when the radiant of the shower is in the zenith.

No	Text
1	- Peter Jenniskens
2	Radio MS reflections recorded by Esko Lyytinen of Helsinki, Finland, on December 22. Time in UT. The period of outburst activity is marked.
3	Ron Dantowitz and Ari Atinizian at Fremont Peak Observatory.
4	Peter Jenniskens points to two comets visible in the sky in small telescopes on the night of the Ursid shower maximum, December 22, 2007.
5	Figure: Location of 8P/Tuttle dust ejected between AD 700 and 900. The Earth moves from Right to Left through the cloud of debris on December 22.
6	Counts of radio reflections during the Ursids in the years around the previous return of the comet to the Sun. 2007 is equivalent to the year 1993. Data: Ilkka Yrjola, Finland.
7	Location of 8P/Tuttle dust ejected between AD 600 and AD 1500. Note how the model explains the aphelion outbursts, but does not account for outbursts at the time when the comet returns. Calculations by Esko Lyytinen and Markku Nissinen, Helsinki, Finland.
8	Follow the shaddow keeps the aircraft in 14 hours of darkness. The graph shows the Earth as seen from the perspective of the approaching Ursid meteoroids on December 22, 2007, at the peak of the antic****ted Ursid outburst.
9	Nighttime areas on Earth on Dec 22.
10	First draft flight path
11	Elevation and azimuth of the Moon for the flight path shown above. Data: Jim Albers, Lockheed Martin.
12	Preliminary instrument layout (v. Nov. 25)

LINK ANALYSIS

Total Link Count: 74

Internal Link Count : 42

No	Text	Type
1	-	image
2	8P/Tuttle	text
3	pjenniskens [at] seti.org	text
4	NASA Ames Public Affairs Office	text
5	flux applet	text
6	8P/Tuttle	text
7	More information	text
8	8P/Tuttle - Image Of The Day	text
9	IAU Telegram	text
10	-	image
11	-	image
12	[click for larger image]	text
13	-	image
14	-	image
15	-	image
16	-	image
17	-	image
18	-	image
19	2007 Ursid shower prediction paper	text
20	Comet Tuttle's rotation period	text
21	-	image
22	prediction paper	text
23	Ursid Meteors 2007	text
24	Latest shower outburst predictions	text
25	-	image
26	-	empty
27	Mission patch	text
28	-	image
29	-	image
30	-	image
31	-	image
32	-	image
33	-	image
34	-	image
35	-	image
36	-	image
37	-	image
38	-	image
39	-	image
40	Peter Jenniskens	text
41	Dave Jordan	text
42	Website attendance	text

External Link Count : 32

No	Text	Type
1	-	image
2	American Meteor Society	text
3	International Meteor Organization	text
4	Where is 8P/Tuttle now (from: Heavens Above)?	text
5	Quadrantid Multi-Instrument Aircraft Campaign	text
6	Jeff Brower	text
7	International Meteor Organization	text
8	Spaceweather.com	text
9	International Meteor Organization	text
10	Video podcast on how to observe the Ursid shower	text
11	Geminid shower	text
12	peculiar video	text
13	Spaceweather.com	text
14	Feature story	text
15	Aurigid Multi-Instrument Campaign	text
16	Ursid comet to travel over M33 galaxy	text
17	International Comet Quarterly	text
18	IAUC 8848	text
19	paper	text
20	Meteor Showers and their Parent Comets	text
21	NASA Ames Research Center missions website	text
22	Aurigid MAC mission website	text
23	Further reading on Ursid shower (Chap. 16)	text
24	Quadrantid MAC	text
25	Quadrantid MAC	text
26	AGU Fall Meeting	text
27	Aurigid MAC mission	text
28	Dr. Peter Jenniskens	text
29	Aurigid shower	text
30	Astronomy Picture of the Day	text
31	Michael Koop	text
32	The SETI Inst**ute	text