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51828 Ilanramon

January 01, 1970

51828 Ilanramon (provisional designation 2001 OU39) is a Gefionian asteroid from the central regions of the asteroid belt, approximately 5.5 kilometers in diameter. It was discovered on 20 July 2001, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. The asteroid was named in memory of Israeli astronaut Ilan Ramon, who died in the Space Shuttle Columbia disaster.[9]

51828 Ilanramon
Discovery [1]
Discovered byNEAT
Discovery sitePalomar Obs.
Discovery date20 July 2001
Designations
(51828) Ilanramon
Named after
Ilan Ramon [2]
(Israeli astronaut)
2001 OU39
main-belt · (middle)
Gefion [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc26.95 yr (9,844 days)
Aphelion3.1311 AU
Perihelion2.4181 AU
2.7746 AU
Eccentricity0.1285
4.62 yr (1,688 days)
76.382°
0° 12m 47.88s / day
Inclination9.4769°
41.712°
42.469°
Physical characteristics
Dimensions5.549±0.904 km[4][5]
9.24 km (calculated)[6]
3.61±0.43 h[7]
0.057 (assumed)[6]
0.1899±0.1093[4][5]
C (assumed)[6]
13.7[5] · 13.9[1][6] · 14.03±0.35[8]

Orbit and classification edit

Ilanramon is a member of the Gefion family (516),[3] a large asteroid family named after 1272 Gefion.[10] It orbits the Sun in the intermediate main-belt at a distance of 2.4–3.1 AU once every 4 years and 7 months (1,688 days; semi-major axis of 2.77 AU). Its orbit has an eccentricity of 0.13 and an inclination of 9° with respect to the ecliptic.[1]

The asteroid's observation arc begins with a precovery from the Digitized Sky Survey taken at Palomar in May 1990, nearly 11 years prior to the body's official discovery observation.[9]

Physical characteristics edit

Ilanramon is an assumed C-type asteroid,[6] but its membership to the Gefion family and its relatively high albedo (see below) measured by the Wide-field Infrared Survey Explorer (WISE), indicate that it is likely a stony S-type asteroid.[10]: 23 

Rotation period edit

In February 2016, a rotational lightcurve of Ilanramon was obtained from photometric observations by a group of Hungarian astronomers based on the Kepler space telescope's K2-mission. Lightcurve analysis gave a short rotation period of 3.61 hours with a brightness amplitude of 0.88 magnitude, indicative for a non-spherical shape (U=2).[7]

Diameter and albedo edit

According to the survey carried out by the NEOWISE mission of NASA's WISE telescope, Ilanramon measures 5.549 kilometers in diameter and its surface has an albedo of 0.1899,[4][5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and consequently calculates a larger diameter of 9.24 kilometers based on an absolute magnitude of 13.9.[6]

Naming edit

This minor planet was named after Israeli astronaut and payload specialist Ilan Ramon (1954–2003), who was killed in the Space Shuttle Columbia disaster on 1 February 2003.[2] The approved naming citation was published by the Minor Planet Center on 6 August 2003 (M.P.C. 49283).[11]

The following asteroids were also named in memory of the other six members of STS-107: 51823 Rickhusband, 51824 Mikeanderson, 51825 Davidbrown, 51826 Kalpanachawla, 51827 Laurelclark and 51829 Williemccool.

References edit

  1. ^ a b c d "JPL Small-Body Database Browser: 51828 Ilanramon (2001 OU39)" (2017-04-30 last obs.). Jet Propulsion Laboratory. Retrieved 28 December 2017.
  2. ^ a b Schmadel, Lutz D. (2006). "(51828) Ilanramon [2.77, 0.13, 9.5]". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 216. doi:10.1007/978-3-540-34361-5_2557. ISBN 978-3-540-34361-5.
  3. ^ a b "Asteroid 51828 Ilanramon – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
  4. ^ a b c Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. S2CID 118745497.
  5. ^ a b c d Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. S2CID 118700974.
  6. ^ a b c d e f "LCDB Data for (51828) Ilanramon". Asteroid Lightcurve Database (LCDB). Retrieved 28 December 2017.
  7. ^ a b Molnár, L.; Pál, A.; Sárneczky, K.; Szabó, R.; Vinkó, J.; Szabó, Gy. M.; et al. (June 2017). "Main-belt Asteroids in the K 2 Uranus Field". The Astrophysical Journal Supplement Series. 234 (2): 37. arXiv:1706.06056. doi:10.3847/1538-4365/aaa1a1. S2CID 119423034.
  8. ^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. S2CID 53493339.
  9. ^ a b "51828 Ilanramon (2001 OU39)". Minor Planet Center. Retrieved 28 December 2017.
  10. ^ a b Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 978-0-8165-3213-1. S2CID 119280014.
  11. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 28 December 2017.

External links edit

  • NASA JPL - Space Shuttle Columbia Tribute page 22 June 2017 at the Wayback Machine
  • Asteroid Lightcurve Database (LCDB), query form (info 16 December 2017 at the Wayback Machine)
  • Dictionary of Minor Planet Names, Google books
  • Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
  • Discovery Circumstances: Numbered Minor Planets (50001)-(55000) – Minor Planet Center
  • 51828 Ilanramon at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
  • 51828 Ilanramon at the JPL Small-Body Database  
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

January 01, 1970
51828, ilanramon, provisional, designation, 2001, ou39, gefionian, asteroid, from, central, regions, asteroid, belt, approximately, kilometers, diameter, discovered, july, 2001, astronomers, near, earth, asteroid, tracking, program, palomar, observatory, calif. 51828 Ilanramon provisional designation 2001 OU39 is a Gefionian asteroid from the central regions of the asteroid belt approximately 5 5 kilometers in diameter It was discovered on 20 July 2001 by astronomers of the Near Earth Asteroid Tracking program at Palomar Observatory in California United States The asteroid was named in memory of Israeli astronaut Ilan Ramon who died in the Space Shuttle Columbia disaster 9 51828 IlanramonDiscovery 1 Discovered byNEATDiscovery sitePalomar Obs Discovery date20 July 2001DesignationsMPC designation 51828 IlanramonNamed afterIlan Ramon 2 Israeli astronaut Alternative designations2001 OU39Minor planet categorymain belt middle Gefion 3 Orbital characteristics 1 Epoch 4 September 2017 JD 2458000 5 Uncertainty parameter 0Observation arc26 95 yr 9 844 days Aphelion3 1311 AUPerihelion2 4181 AUSemi major axis2 7746 AUEccentricity0 1285Orbital period sidereal 4 62 yr 1 688 days Mean anomaly76 382 Mean motion0 12m 47 88s dayInclination9 4769 Longitude of ascending node41 712 Argument of perihelion42 469 Physical characteristicsDimensions5 549 0 904 km 4 5 9 24 km calculated 6 Synodic rotation period3 61 0 43 h 7 Geometric albedo0 057 assumed 6 0 1899 0 1093 4 5 Spectral typeC assumed 6 Absolute magnitude H 13 7 5 13 9 1 6 14 03 0 35 8 Contents 1 Orbit and classification 2 Physical characteristics 2 1 Rotation period 2 2 Diameter and albedo 3 Naming 4 References 5 External linksOrbit and classification editIlanramon is a member of the Gefion family 516 3 a large asteroid family named after 1272 Gefion 10 It orbits the Sun in the intermediate main belt at a distance of 2 4 3 1 AU once every 4 years and 7 months 1 688 days semi major axis of 2 77 AU Its orbit has an eccentricity of 0 13 and an inclination of 9 with respect to the ecliptic 1 The asteroid s observation arc begins with a precovery from the Digitized Sky Survey taken at Palomar in May 1990 nearly 11 years prior to the body s official discovery observation 9 Physical characteristics editIlanramon is an assumed C type asteroid 6 but its membership to the Gefion family and its relatively high albedo see below measured by the Wide field Infrared Survey Explorer WISE indicate that it is likely a stony S type asteroid 10 23 Rotation period edit In February 2016 a rotational lightcurve of Ilanramon was obtained from photometric observations by a group of Hungarian astronomers based on the Kepler space telescope s K2 mission Lightcurve analysis gave a short rotation period of 3 61 hours with a brightness amplitude of 0 88 magnitude indicative for a non spherical shape U 2 7 Diameter and albedo edit According to the survey carried out by the NEOWISE mission of NASA s WISE telescope Ilanramon measures 5 549 kilometers in diameter and its surface has an albedo of 0 1899 4 5 while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0 057 and consequently calculates a larger diameter of 9 24 kilometers based on an absolute magnitude of 13 9 6 Naming editThis minor planet was named after Israeli astronaut and payload specialist Ilan Ramon 1954 2003 who was killed in the Space Shuttle Columbia disaster on 1 February 2003 2 The approved naming citation was published by the Minor Planet Center on 6 August 2003 M P C 49283 11 The following asteroids were also named in memory of the other six members of STS 107 51823 Rickhusband 51824 Mikeanderson 51825 Davidbrown 51826 Kalpanachawla 51827 Laurelclark and 51829 Williemccool References edit a b c d JPL Small Body Database Browser 51828 Ilanramon 2001 OU39 2017 04 30 last obs Jet Propulsion Laboratory Retrieved 28 December 2017 a b Schmadel Lutz D 2006 51828 Ilanramon 2 77 0 13 9 5 Dictionary of Minor Planet Names Springer Berlin Heidelberg p 216 doi 10 1007 978 3 540 34361 5 2557 ISBN 978 3 540 34361 5 a b Asteroid 51828 Ilanramon Nesvorny HCM Asteroid Families V3 0 Small Bodies Data Ferret Retrieved 27 October 2019 a b c Masiero Joseph R Mainzer A K Grav T Bauer J M Cutri R M Dailey J et al November 2011 Main Belt Asteroids with WISE NEOWISE I Preliminary Albedos and Diameters The Astrophysical Journal 741 2 20 arXiv 1109 4096 Bibcode 2011ApJ 741 68M doi 10 1088 0004 637X 741 2 68 S2CID 118745497 a b c d Mainzer A Grav T Masiero J Hand E Bauer J Tholen D et al November 2011 NEOWISE Studies of Spectrophotometrically Classified Asteroids Preliminary Results The Astrophysical Journal 741 2 25 arXiv 1109 6407 Bibcode 2011ApJ 741 90M doi 10 1088 0004 637X 741 2 90 S2CID 118700974 a b c d e f LCDB Data for 51828 Ilanramon Asteroid Lightcurve Database LCDB Retrieved 28 December 2017 a b Molnar L Pal A Sarneczky K Szabo R Vinko J Szabo Gy M et al June 2017 Main belt Asteroids in the K 2 Uranus Field The Astrophysical Journal Supplement Series 234 2 37 arXiv 1706 06056 doi 10 3847 1538 4365 aaa1a1 S2CID 119423034 Veres Peter Jedicke Robert Fitzsimmons Alan Denneau Larry Granvik Mikael Bolin Bryce et al November 2015 Absolute magnitudes and slope parameters for 250 000 asteroids observed by Pan STARRS PS1 Preliminary results Icarus 261 34 47 arXiv 1506 00762 Bibcode 2015Icar 261 34V doi 10 1016 j icarus 2015 08 007 S2CID 53493339 a b 51828 Ilanramon 2001 OU39 Minor Planet Center Retrieved 28 December 2017 a b Nesvorny D Broz M Carruba V December 2014 Identification and Dynamical Properties of Asteroid Families Asteroids IV pp 297 321 arXiv 1502 01628 Bibcode 2015aste book 297N doi 10 2458 azu uapress 9780816532131 ch016 ISBN 978 0 8165 3213 1 S2CID 119280014 MPC MPO MPS Archive Minor Planet Center Retrieved 28 December 2017 External links editNASA JPL Space Shuttle Columbia Tribute page Archived 22 June 2017 at the Wayback Machine Asteroid Lightcurve Database LCDB query form info Archived 16 December 2017 at the Wayback Machine Dictionary of Minor Planet Names Google books Asteroids and comets rotation curves CdR Observatoire de Geneve Raoul Behrend Discovery Circumstances Numbered Minor Planets 50001 55000 Minor Planet Center 51828 Ilanramon at AstDyS 2 Asteroids Dynamic Site Ephemeris Observation prediction Orbital info Proper elements Observational info 51828 Ilanramon at the JPL Small Body Database nbsp Close approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters Retrieved from https en wikipedia org w index php title 51828 Ilanramon amp oldid 1197582945, wikipedia, wiki, book, books, library,

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