1989 Tatry

1989 Tatry
Discovery [1][2]
Discovered by A. Paroubek
R. Podstanicka
Discovery site Skalnaté Pleso Obs.
Discovery date 20 March 1955
Designations
MPC designation 1989 Tatry
Named after
 High Tatra Mountains[3]
1955 FG · 1935 UQ
1944 DL · 1955 DY
1964 WK · 1968 YC
1971 SJ2
main-belt · Vestian [4]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 80.43 yr (29376 days)
Aphelion 2.5303 AU (378.53 Gm)
Perihelion 2.1723 AU (324.97 Gm)
2.3513 AU (351.75 Gm)
Eccentricity 0.076128
3.61 yr (1316.9 d)
2.2690°
0° 16m 24.132s / day
Inclination 7.7642°
25.315°
88.685°
Earth MOID 1.20502 AU (180.268 Gm)
Jupiter MOID 2.54029 AU (380.022 Gm)
Jupiter Tisserand parameter 3.541
Physical characteristics
Dimensions 9.87±0.88 km[5]
9.603±0.063 km[6]
8.99±2.38 km[7]
17.60 km (calculated)[4]
131.3 h (5.47 d)[1][8]
39.9±0.1 h[9]
24 h[10]
0.262±0.048[5]
0.1917±0.0338[6]
0.240±0.205[7]
0.057 (assumed)[4]
SMASS = C
C [4]
12.6[1]

    1989 Tatry, provisional designation 1955 FG, is a carbonaceous vestian asteroid and slow rotator from the inner regions of the asteroid belt, about 10 kilometers in diameter. It was discovered on 20 March 1955, by the Slovakian astronomers A. Paroubek and R. Podstanicka at Skalnate Pleso Observatory, Slovakia.[2]

    Based on its orbital elements, the asteroid is a member of the Vesta family. It orbits the Sun at a distance of 2.2–2.5 AU once every 3 years and 7 months (1,317 days). Its orbit shows an eccentricity of 0.08 and is tilted by 8 degrees to the plane of the ecliptic. According to the surveys carried out by the Japanese Akari satellite and the U.S. Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the body has a high albedo in the range of 0.19–0.26.[5][6][7] However, the Collaborative Asteroid Lightcurve Link (CALL) assumes the body to be a dark C-type asteroid with an albedo of 0.06. As a consequence, CALL calculates a much larger diameter of 18 kilometers for the asteroid, as the lower the albedo (reflectivity), the higher the diameter for a given absolute magnitude (brightness).[4]

    Photometric measurements of the asteroid made in 2005 at the U.S. Palmer Divide Observatory showed a light-curve with a period of 39.9±0.1 hours and a brightness variation of below 0.22±0.02 in magnitude. However, the data was incomplete, so the period is considered suspect.[9] Further measurements made in 2007 at the Modra Observatory in Slovakia showed a much longer period of 131.3±0.2 hours with a brightness variation of 0.5 in magnitude.[8]

    The minor planet is named after the location of the discovering observatory, High Tatras (Czech: Vysoké Tatry), the highest mountain range in former Czechoslovakia.[3]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1989 Tatry (1955 FG)" (2015-11-19 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
    2. 1 2 "1989 Tatry (1955 FG)". Minor Planet Center. Retrieved December 2015.
    3. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1989) Tatry. Springer Berlin Heidelberg. p. 161. ISBN 978-3-540-29925-7. Retrieved December 2015.
    4. 1 2 3 4 5 "LCDB Data for (1989) Tatry". Asteroid Lightcurve Database (LCDB). Retrieved December 2015.
    5. 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 December 2015.
    6. 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 December 2015.
    7. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; Cabrera, M. S. (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. Retrieved December 2015.
    8. 1 2 Galad, Adrian; Kornos, Leonard; Gajdos, Stefan (January 2009). "Lightcurves of Eight Selected Asterois from Modra". The Minor Planet Bulletin 36 (1): 13–15. Bibcode:2009MPBu...36...13G. ISSN 1052-8091. Retrieved December 2015.
    9. 1 2 Warner, Brian D. (September 2005). "Asteroid lightcurve analysis at the Palmer Divide Observatory - winter 2004-2005". The Minor Planet Bulletin 32 (3): 54–58. Bibcode:2005MPBu...32...54W. ISSN 1052-8091. Retrieved December 2015.
    10. ↑ Behrend, Raoul. "Asteroids and comets rotation curves – (1989) Tatry". Geneva Observatory. Retrieved December 2015.

    External links


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