1602 Indiana

1602 Indiana
Discovery [1]
Discovered by Indiana Asteroid Program
Discovery site Goethe Link Obs.
Discovery date 14 March 1950
Designations
MPC designation 1602 Indiana
Named after
 Indiana
(U.S. state)[2]
1950 GF · 1943 DJ
1975 XR
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 72.90 yr (26627 days)
Aphelion 2.4785 AU (370.78 Gm)
Perihelion 2.0109 AU (300.83 Gm)
2.2447 AU (335.80 Gm)
Eccentricity 0.10416
3.36 yr (1228.4 d)
241.46°
0° 17m 35.052s / day
Inclination 4.1613°
75.146°
73.350°
Earth MOID 1.02712 AU (153.655 Gm)
Jupiter MOID 2.52419 AU (377.613 Gm)
Jupiter Tisserand parameter 3.621
Physical characteristics
Dimensions 8.41±0.59 km[4]
8.515±0.047 km[5]
8.62 km (calculated)[3]
2.601 h (0.1084 d)[1][6]
2.610±0.001 h[7]
2.57±0.06 h[lower-alpha 1]
0.259±0.040[4]
0.2503±0.0493[5]
0.24 (assumed)[3]
B–V = 0.930
U–B = 0.550
Tholen = S
S [3]
12.49

    1602 Indiana, provisional designation 1950 GF, is a stony asteroid from the inner regions of the asteroid belt, about 9 kilometers in diameter. It was discovered by the Indiana Asteroid Program at the U.S. Goethe Link Observatory near Brooklyn, Indiana, on 14 March 1950.[8]

    The asteroid is a member of the Flora family, a large group of stony S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,229 days). Its orbit shows an eccentricity of 0.10 and is tilted by 4 degrees to the plane of the ecliptic. It has a rotation period of 2.6 hours[6][7] and a geometric albedo of about 0.25, based on the surveys carried out by the Akari and NEOWISE missions.[4][5]

    The minor planet was named for the U.S. state of Indiana and for Indiana University, the parent institution of the astronomy department and the observatory in which the planet was discovered.[2]

    Originally the discovery was credited to Beryl H. Potter (1901–1985), after whom the asteroid 1729 Beryl is named. She was research assistant at the Indiana University, who participated in the program of minor planet observations from 1949 to 1966. During this period, she analysed nearly 6,300 photographic plates, measuring the positions of minor planets and reporting lost asteroids to IAU's Minor Planet Circulars (MPCs) for publication. However, according to Frank K. Edmondson (1912–2008), chairman of the Astronomy Department of Indiana University (also see 1761 Edmondson), there were several assistants involved in blinking the photographic plates during the first years of the program. The discovery was therefore credited to Indiana University, instead.[2]

    References

    1. ↑ Pietschnig (2011) web: rotation period 2.57±0.06 with a brightness amplitude of 0.19 in magnitude. Summary figures at Asteroid Lightcurve Database for (1602) Indiana
    1. 1 2 3 "JPL Small-Body Database Browser: 1602 Indiana (1950 GF)" (2015-10-19 last obs.). Jet Propulsion Laboratory. Retrieved 25 April 2016.
    2. 1 2 3 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1602) Indiana. Springer Berlin Heidelberg. p. 127. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 "LCDB Data for (1602) Indiana". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 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. Retrieved November 2015.
    5. 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. Retrieved November 2015.
    6. 1 2 Vander Haagen; Gary A. (December 2007). "Lightcurves of Minor Planets 559 Nanon and 1602 Indiana". The Minor Planet Bulletin 34 (4): 107. Bibcode:2007MPBu...34..107V. ISSN 1052-8091. Retrieved November 2015.
    7. 1 2 Fleenor, Michael L. (September 2007). "Asteroid Lightcurve Analysis from Volunteer Observatory December 2006 to April 2007". The Minor Planet Bulletin 34 (3): 66–67. Bibcode:2007MPBu...34...66F. ISSN 1052-8091. Retrieved November 2015.
    8. ↑ "1602 Indiana (1950 GF)". Minor Planet Center. Retrieved November 2015.

    External links


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