2007 McCuskey

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2007 McCuskey
Discovery [1]
Discovered by Indiana University
(Indiana Asteroid Program)
Discovery site Goethe Link Obs.
Discovery date22 September 1963
Designations
(2007) McCuskey
Named after
 Sidney McCuskey
(American astronomer) [2]
1963 SQ ·1936 HP
1941 SW1 ·1943 EL
1947 GE ·1951 LV
1952 SB1 ·1952 UR1
1958 GB ·1963 TL
1963 VC ·1965 CA
1965 CC ·1966 OB
1969 EC1 ·1970 QD1
A921 EK
main-belt  ·(inner) [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 64.55 yr (23,576 days)
Aphelion 2.6585 AU
Perihelion 2.1094 AU
2.3839 AU
Eccentricity 0.1152
3.68 yr (1,344 days)
47.384°
0° 16m 4.08s / day
Inclination 3.0420°
17.043°
185.25°
Physical characteristics
Dimensions19.08±3.76 km [4]
20.21±7.11 km [5]
21.78 km (derived) [3]
23.14±0.35 km [6]
23.517±0.181 km [7]
23.97±0.49 km [8]
25.733±0.089 km [9]
33.79±1.31 km [10]
34.727±5.933 km [11]
8.603±0.001 h [12]
8.611±0.003 h [13]
0.023±0.004 [11]
0.032±0.032 [8]
0.0377±0.0067 [9]
0.05±0.03 [5]
0.0558 (derived) [3]
0.06±0.02 [4]
0.062±0.022 [7]
0.063±0.002 [6]
C [12]  · S [3]
V–R = 0.340±0.040 [12]
11.80 [6] [11]  ·12.0 [4] [9]  ·12.06±0.05 [3] [12]  ·12.1 [1]  ·12.32 [5]  ·12.45 [8]

    2007 McCuskey, provisional designation 1963 SQ, is a carbonaceous asteroid from the inner regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered on 22 September 1963, by astronomers of the Indiana Asteroid Program at Goethe Link Observatory near Brooklyn, Indiana, United States. [14] The asteroid was later named after American astronomer Sidney McCuskey. [2]

    Contents

    Orbit and classification

    McCuskey is a dark asteroid that orbits the Sun in the inner main-belt at a distance of 2.1–2.7  AU once every 3 years and 8 months (1,344 days). Its orbit has an eccentricity of 0.12 and an inclination of 3° with respect to the ecliptic. [1]

    In March 1921, McCuskey was first identified as A921 EK at Heidelberg Observatory. The asteroid's observation arc begins 12 years prior to its official discovery observation, with its identification as 1951 LV at McDonald Observatory in June 1951. [14]

    Physical characteristics

    McCuskey has been described as a dark C-type asteroid, compatible with the measured color index and opposition/slope parameter. [12]

    Diameter and albedo

    Measurements made with the IRAS observatory give a diameter of 33.79 kilometers and a geometric albedo of 0.07. By comparison, measurements with Spitzer's Multiband Imaging Photometer (MIPS) give a diameter of 35.26 kilometers and a geometric albedo of 0.03. [10]

    According to the more recent 2015/16 results of the NEOWISE survey carried out by NASA's Wide-field Infrared Survey Explorer, McCuskey measures 19.08 and 20.21 kilometers in diameter and its surface has an albedo of 0.06 and 0.05, respectively. [4] [5]

    The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0558 and a diameter of 21.78 kilometers based on an absolute magnitude of 12.06. [3]

    Lightcurves

    In March 2013, a rotational lightcurve of McCuskey was obtained from photometric observations by an international collaboration of astronomers. Lightcurve analysis gave a well-defined rotation period of 8.603 hours with a brightness variation of 0.18 magnitude ( U=3 ). The group also determined a V–R color index of 0.340. [12]

    Astronomers at Texas A&M University using the 0.6-meter SARA South Telescope at Cerro Tololo in August 2014, determined a concurring period of 8.611 hours with a brightness amplitude of 0.21 magnitude ( U=3 ). [13]

    Naming

    This minor planet was named in honour of American mathematician and astronomer Sidney Wilcox McCuskey (1907–1979), who was the director of the Warner and Swasey Observatory and president of IAU Commission 33, Structure and Dynamics of the Galactic System. He is best known for his contribution on stellar luminosity and galactic structure. [2] The approved naming citation was published by the Minor Planet Center on 6 June 1982 ( M.P.C. 6954). [15]

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    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 2007 McCuskey (1963 SQ)" (2017-05-05 last obs.). Jet Propulsion Laboratory . Retrieved 30 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(2007) McCuskey". Dictionary of Minor Planet Names – (2007) McCuskey. Springer Berlin Heidelberg. pp. 162–163. doi:10.1007/978-3-540-29925-7_2008. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (2007) McCuskey". Asteroid Lightcurve Database (LCDB). Retrieved 30 June 2017.
    4. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv: 1509.02522 . Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. S2CID   9341381 . Retrieved 30 June 2017.
    5. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv: 1606.08923 . Bibcode:2016AJ....152...63N. doi: 10.3847/0004-6256/152/3/63 .
    6. 1 2 3 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)
    7. 1 2 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 . Retrieved 30 June 2017.
    8. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv: 1209.5794 . Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. S2CID   46350317 . Retrieved 30 June 2017.
    9. 1 2 3 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   35447010.
    10. 1 2 Ryan, Erin Lee; et al. (April 2012), "The Kilometer-Sized Main Belt Asteroid Population as Revealed by Spitzer", eprint arXiv, arXiv: 1204.1116 , Bibcode:2012arXiv1204.1116R.
    11. 1 2 3 Ryan, E. L.; Mizuno, D. R.; Shenoy, S. S.; Woodward, C. E.; Carey, S. J.; Noriega-Crespo, A.; et al. (June 2015). "The kilometer-sized Main Belt asteroid population revealed by Spitzer". Astronomy and Astrophysics. 578: 12. arXiv: 1204.1116 . Bibcode:2015A&A...578A..42R. doi:10.1051/0004-6361/201321375. S2CID   21069867 . Retrieved 30 June 2017.
    12. 1 2 3 4 5 6 Klinglesmith, Daniel A. III; Franco, Lorenzo, Franco (July 2013). "Lightcurve and H-G Parameters for Asteroid 2007 McCuskey". The Minor Planet Bulletin. 40 (3): 177–178. Bibcode:2013MPBu...40..177K. ISSN   1052-8091 . Retrieved 30 June 2017.{{cite journal}}: CS1 maint: multiple names: authors list (link)
    13. 1 2 Cantu, Sara; Adolphson, Max; Montgomery, Kent; Renshaw, Thomas (January 2015). "Lightcurves of Asteroids 2007 McCuskey, 2669 Shostakovich 3544 Borodino, and 7749 Jackschmitt". The Minor Planet Bulletin. 42 (1): 28–29. Bibcode:2015MPBu...42...28C. ISSN   1052-8091 . Retrieved 30 June 2017.
    14. 1 2 "2007 McCuskey (1963 SQ)". Minor Planet Center. Retrieved 30 June 2017.
    15. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 30 June 2017.
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