northanger (northanger) wrote,

2000 PN9 Flyby & POCAHONTAS

ASTEROID FLYBY: On Monday, March 6th, asteroid #23187-2000_PN9 {MPC} will fly past Earth. There's no danger of a collision with the mile-wide space rock, but it will be close enough (2 million miles) and bright enough (12th magnitude) for amateur astronomers to photograph using big backyard telescopes and CCD cameras: ephemeris. {}

AQ 80 = #23187-2000_PN9 = BLOO

flyby occurs:

 • approx a week before a rare lunar event (penumbral lunar eclipse)
 • approx three weeks before a total eclipse & the spring equinox
 • same day as the first quarter moon (20:15:458982UT)
 • in Aries where True Node currently transiting
 • conjuncts asteroid POCAHONTAS

2000 PN9 Planning :: 23187 2000 PN9 was discovered by LINEAR on August 8, 2000. It will make a very close approach within 0.020 AU (only 7.8 lunar distances) on March 6. We have five Goldstone tracks on dates that straddle the closest approach. We observed 2000 PN9 at Goldstone and Arecibo in March, 2001, when the asteroid approached within 0.061 AU. This year the approach will be nearly three times closer, so the echoes will be considerably stronger. Radar and optical observations in 2001 revealed that 2000 PN9 is a lumpy spheroid with a diameter of about 1.7 km and a rotation period of 2.5 hours. The combined 2001 + 2006 radar and lightcurve datasets will be used to estimate the asteroid's 3-D shape and spin state. Goldstone observations are scheduled on March 4, 7, 9, 10, and 12 and Arecibo observations are scheduled on March 5. 2000 PN9 will be an extremely strong radar target during the first two Goldstone tracks but much weaker on the other three as the asteroid rapidly recedes from Earth. Due to the proxmity of its orbit to Earth and its diameter, 2000 PN9 has been classified as a "Potentially Hazardous Asteroid" by the Minor Planet Center — 2000 PN9 moves so fast near closest approach it goes through Arecibo's declination window in less than two hours on one day. The actual Arecibo window is on March 5, not March 6 as is shown above.

 • Goldstone Observatory—located in California's Mojave Desert (USA). Operated by the Jet Propulsion Laboratory, its main purpose is to track and communicate with space missions. The observatory is part of NASA's Deep Space Network. Asteroid #4433-GOLDSTONE named in its honor.

 • Arecibo Observatory—located approximately 12 miles south-southwest from Arecibo, Puerto Rico; operated by Cornell University under cooperative agreement with the National Science Foundation; radio telescope is the largest single-aperture telescope ever to be constructed; appeared in James Bond movie GoldenEye & movie Contact; location of SETI@home project. Asteroid #4337-ARECIBO named in its honor.

 • GOLDSTONE (30-Aug-1981) & ARECIBO (14-Arp-1985) both discovered by American astronomer Edward Bowell who also discovered SOOMANA, SOOTIYO, ARTHUR, MERLIN, SACAJAWEA, GREENWICH, HOPI, SHAKESPEARE, NAVAJO, INCEDENTIA, MCCARTNEY, GUBBIO, SHERLOCK, DRWATSON, KURTZ, SKEPTICUS, NICCOLO, CRAWFORD, COMBA, LEVIATHAN, HAL, HAZARD, DOTY, RIDE (named for Sally Ride, first woman in space) & six of the Challenger Asteroids (SCOBEE, SMITH, JARVIS, MCNAIR, ONIZUKA, RESNIK). asteroid #2246-BOWELL named in his honor which he also discovered 14-Dec-1979.

Asteroids in Favorable Elongation — Planet 23187 2000 PN9 becomes much closer and brighter in early March than at any time for the rest of the 21st century. It passes inferior conjunction March 5, becomes brightest at magnitude 12.0 two days later after moving 0.020 AU behind the Earth on March 6, then moves rapidly outward and fades to magnitude 16 on March 24. At far northerly declination planet 23187 will be observable only by northern hemisphere observers.


06-March Flyby Conjunct POCAHONTAS

i'm looking at POCAHONTAS' house position during the current cycle {26AR41} on 25-February & PN9's close approach {25AR26} on 06-March. note PN9's {06PI40Rx} conjunction with QUADEA {08PI14Rx} on 27-Aug-2005.

060306 2000 PN9   25 ar 26'22.3822 27.1873657  20° 3'13.7852 0.020340588 04:22:552440UT
060306 Pocahontas  3 ta 38'12.2648  0.8419141   3°44'53.4997 1.784426749 04:22:552440UT
060306 true Node   4 ar 30'41.1576  0.0090681   1°47'35.2180 0.002404151 04:22:552440UT

REVISED TIME [30-May|08:37am] ::

060306 2000 PN9   25 ar 26'22.7752 27.1873902  20° 3'14.5188 0.020340588 04:22:569441UT
060306 Pocahontas  3 ta 38'12.2762  0.8419143   3°44'53.4818 1.784426779 04:22:569441UT
060306 true Node   4 ar 30'41.3824  0.0090681   1°47'35.3044 0.002404151 04:22:569441UT

Cycle #16 Transits

060225 Pocahontas 26 ar 40'43.4086  0.8561085   2° 3'24.1489 1.728059822 23:43:41UT  5-House
060228 2000 PN9    1 pi  3'38.3259  2.9349558 -56°22'46.7681 0.096170993 23:43:41UT  4-House

 • Cycle #16 :: DOTY {25AR17}, STANISLAV {25AR35}, MITCHELLA {25AR45}, PRIME {26AR15}, CONFUCIUS {26AR25} & POCAHONTAS {26AR41}.

27-August-2005 Chart

050827 Pocahontas  5 sa 17' 1.1681  0.4182070   0°49'44.8884 1.132476265 22:43:41UT  1-House
050827 2000 PN9    6 pi 39'52.9388 -0.7212561  12°25'10.0375 0.909555349 22:43:41UT  4-House

 • natal 2000_PN9 conjunct MAXIMILIANA {05PI21Rx}, DENEB_EL_ADIGE {05PI25}, ZOSER {06PI55Rx} & QUADEA {08PI14Rx}.


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