16070 Charops

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16070 Charops
Discovery [1]
Discovered byLINEAR
Discovery siteLincoln Lab's ETS
Discovery date8 September 1999
Designations
(16070) Charops
Named after
Charops [2]
(Greek mytholgoy)
1999 RB101 · 1982 BD15
1993 BY3
Minor planet category
Jupiter trojan [1][3][4]
Trojan [5][6] · background [6]
Orbital characteristics [3]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc63.66 yr (23,250 d)
Aphelion5.7667 AU
Perihelion4.4978 AU
5.1322 AU
Eccentricity0.1236
11.63 yr (4,247 d)
240.19°
0° 5m 5.28s / day
Inclination16.252°
300.88°
353.61°
Jupiter MOID0.49 AU
TJupiter2.9060
Physical characteristics
Mean diameter
63.19±1.01 km[7]
64.13±5.8 km[8]
64.19 km (derived)[4]
68.98±3.69 km[9]
20.205±0.015 h[10][a]
20.24±0.01 h[11][a]
20.27±0.01 h[11][a]
31.74±0.01 h[12][a]
0.045±0.005[9]
0.0516±0.011[8]
0.0565 (derived)[4]
0.058±0.009[7]
D Pan-STARRS)[13]
D (SDSS-MOC)[14]
C (assumed)[4]
B–V = 0.770±0.060[15]
V–R = 0.480±0.040[15]
V–I = 0.960±0.037[4]
Absolute magnitude (H)
9.7[1][3][4][7]
9.80[9]
9.94±0.23[13]

16070 Charops, provisional designation: 1999 RB101, is a Jupiter trojan from the Trojan camp, approximately 64 kilometers (40 miles) in diameter. It was discovered on 8 September 1999, by astronomers with Lincoln Near-Earth Asteroid Research at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States.[1] The dark D-type asteroid belongs to the 60 largest Jupiter trojans and has a rotation period of 20.24 hours.[4] It was named after the Lycian soldier Charops from Greek mythology.[2]

Orbit and classification[]

Charops is located in the L5 Lagrangian point, 60° behind Jupiter in the so-called Trojan camp.[5] It is also a non-family asteroid of the Jovian background population.[6] It orbits the Sun at a distance of 4.5–5.8 AU once every 11 years and 8 months (4,247 days; semi-major axis of 5.13 AU). Its orbit has an eccentricity of 0.12 and an inclination of 16° with respect to the ecliptic.[3]

The body's observation arc begins with a precovery published by the Digitized Sky Survey and taken at the Palomar Observatory in September 1954, or 45 years prior to its official discovery observation at Socorro.[1]

Numbering and naming[]

This minor planet was numbered on 26 July 2000 (M.P.C. 40995).[16] As of 2018, it has not been named.[1] On 14 May 2021, the object was named by the Working Group Small Body Nomenclature (WGSBN), after the Lycian soldier Charops, son of Hippasus and brother to Socus, from Greek mythology. Charops was wounded by the Greek hero Odysseus in the Trojan War.[2]

Physical characteristics[]

In the SDSS-based taxonomy, Charops is a dark D-type asteroid.[17][14] It has also been characterized as a D-type by Pan-STARRS' survey, while the Collaborative Asteroid Lightcurve Link (CALL) assumes it to be a C-type asteroid.[4]

Rotation period[]

Several rotational lightcurves of Charops have been obtained from photometric observations by Daniel Coley and Robert Stephens at GMARS (G79) and the Center for Solar System Studies, California. Analysis of the best-rated lightcurve from October 2011 gave a rotation period of 20.24±0.01 hours with a brightness variation of 0.10±0.01 magnitude (U=2).[4][10][11][12][a] A longer period with a high amplitude reported by Duffard Melita has received a lower rating (U=2-).[b]

Diameter and albedo[]

According to the surveys carried out by the Japanese Akari satellite, the Infrared Astronomical Satellite IRAS, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Charops measures between 63.19 and 68.98 kilometers in diameter and its surface has an albedo between 0.045 and 0.058.[7][8][9] CALL derives an albedo of 0.0565 and a diameter of 64.19 kilometers based on an absolute magnitude of 9.7.[4]

100+ largest Jupiter trojans

Notes[]

  1. ^ Jump up to: a b c d e Lightcurve plots of (16070) 1999 RB101 from 2011, 2014/15, 2017, 2018 by Daniel Coley and Robert Stephens at the Center for Solar System Studies (U80) and (U81). Quality code is 1+/2+/2+/n.a. (lightcurve rating at CS3). Summary figures at the LCDB and CS3.
  2. ^ Melita (2012), observation of (16070) 1999 RB101 from 23 May 2012 with a rotation period of 52.80±0.05 and an amplitude of 0.40±0.03. Quality code is 2-. Summary figures at LCDB

References[]

  1. ^ Jump up to: a b c d e f "16070 (1999 RB101)". Minor Planet Center. Retrieved 14 June 2018.
  2. ^ Jump up to: a b c "WGSBN Bulletin Archive". Working Group Small Body Nomenclature. 14 May 2021. Retrieved 16 May 2021. (Bulletin #1)
  3. ^ Jump up to: a b c d "JPL Small-Body Database Browser: 16070 (1999 RB101)" (2018-05-24 last obs.). Jet Propulsion Laboratory. Retrieved 14 June 2018.
  4. ^ Jump up to: a b c d e f g h i j "LCDB Data for (16070)". Asteroid Lightcurve Database (LCDB). Retrieved 14 June 2018.
  5. ^ Jump up to: a b "List of Jupiter Trojans". Minor Planet Center. 4 October 2017. Retrieved 14 June 2018.
  6. ^ Jump up to: a b c "Asteroid (16070) 1999 RB101 – Proper elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 5 June 2018.
  7. ^ Jump up to: a b c d Grav, T.; Mainzer, A. K.; Bauer, J. M.; Masiero, J. R.; Nugent, C. R. (November 2012). "WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy". The Astrophysical Journal. 759 (1): 10. arXiv:1209.1549. Bibcode:2012ApJ...759...49G. doi:10.1088/0004-637X/759/1/49. S2CID 119101711. (online catalog)
  8. ^ Jump up to: a b c Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 15 June 2018.
  9. ^ Jump up to: a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
  10. ^ Jump up to: a b Stephens, Robert D.; Coley, Daniel R. (July 2017). "Lightcurve Analysis of Trojan Asteroids at the Center for Solar System Studies 2017 January - March". The Minor Planet Bulletin. 44 (3): 252–257. Bibcode:2017MPBu...44..252S. ISSN 1052-8091. PMC 7243922. PMID 32455404.
  11. ^ Jump up to: a b c Stephens, Robert D.; Coley, Daniel R.; French, Linda M. (July 2015). "Dispatches from the Trojan Camp - Jovian Trojan L5 Asteroids Observed from CS3: 2014 October - 2015 January". The Minor Planet Bulletin. 42 (3): 216–224. Bibcode:2015MPBu...42R.216S. ISSN 1052-8091.
  12. ^ Jump up to: a b French, Linda M.; Stephens, Robert D.; Coley, Daniel R.; Megna, Ralph; Wasserman, Lawrence H. (July 2012). "Photometry of 17 Jovian Trojan Asteroids". The Minor Planet Bulletin. 39 (3): 183–187. Bibcode:2012MPBu...39..183F. ISSN 1052-8091.
  13. ^ Jump up to: a b 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.
  14. ^ Jump up to: a b Carvano, J. M.; Hasselmann, P. H.; Lazzaro, D.; Mothé-Diniz, T. (February 2010). "SDSS-based taxonomic classification and orbital distribution of main belt asteroids". Astronomy and Astrophysics. 510: 12. Bibcode:2010A&A...510A..43C. doi:10.1051/0004-6361/200913322. Retrieved 30 October 2019. (PDS data set)
  15. ^ Jump up to: a b Chatelain, Joseph P.; Henry, Todd J.; French, Linda M.; Winters, Jennifer G.; Trilling, David E. (June 2016). "Photometric colors of the brightest members of the Jupiter L5 Trojan cloud". Icarus. 271: 158–169. Bibcode:2016Icar..271..158C. doi:10.1016/j.icarus.2016.01.026.
  16. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 14 June 2018.
  17. ^ "Asteroid (16070) 1999 RB101". Small Bodies Data Ferret. Retrieved 14 June 2018.

External links[]

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