1989 Tatry

1989 Tatry
Discovery [1]
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
(in northern Slovakia)[2]
1955 FG · 1935 UQ
1944 DL · 1955 DY
1964 WK · 1968 YC
1971 SJ2
main-belt · Vestian [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 80.67 yr (29,464 days)
Aphelion 2.5318 AU
Perihelion 2.1722 AU
2.3520 AU
Eccentricity 0.0765
3.61 yr (1,317 days)
56.893°
0° 16m 23.52s / day
Inclination 7.7649°
25.308°
88.711°
Physical characteristics
Dimensions 8.99±2.38 km[4]
9.399±0.122 km[5]
9.603±0.063 km[6]
9.87±0.88 km[7]
16.81 km (calculated)[3]
24 h[8]
39.9±0.1 h[9]
131.3±0.2 h[10]
0.057 (assumed)[3]
0.175±0.017[5]
0.1917±0.0338[6]
0.240±0.205[4]
0.262±0.048[7]
SMASS = C [1] · C [3]
12.10[7]
12.10±0.91[11]
12.40[4]
12.5[6]
12.6[1][3]

    1989 Tatry, provisional designation 1955 FG, is a carbonaceous Vestian asteroid and relatively slow rotator from the inner regions of the asteroid belt, approximately 16 kilometers in diameter. It was discovered on 20 March 1955, by the Slovakian astronomers Alois Paroubek and Regina Podstanická at Skalnate Pleso Observatory, Slovakia.[12] It was their only minor planet discovery.

    Based on its orbital elements, the asteroid is a member of the Vesta family and classified as a carbonaceous C-type asteroid in the SMASS taxonomy. 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 has an eccentricity of 0.08 and an inclination of 8° with respect to the ecliptic.[1] It was first identified as "1935 UQ" at the South African Union Observatory in 1935, extending the asteroid's observation arc by 20 years prior to its official discovery.[12]

    According to the surveys carried out by the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures between 8.99 and 9.87 kilometers in diameter and its surface has an albedo between 0.175 and 0.262.[4][5][6][7] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a much larger diameter of 16.8 kilometers, as the lower the albedo (reflectivity), the higher the diameter at a constant absolute magnitude (brightness).[3]

    Photometric measurements of the asteroid made in January 2005, by astronomer Brian D. Warner at his Palmer Divide Observatory, Colorado, gave 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 (U=2-).[9] Further measurements made in October 2007, by Adrián Galád, Leonard Kornoš and Štefan Gajdoš at Modra Observatory in Slovakia, showed a much longer period of 131.3±0.2 hours with a brightness variation of 0.5 in magnitude (U=2).[10] In March 2009, a fragmentary light-curve obtained by French amateur astronomer Pierre Antonini gave a period of 24 hours (U=1).[8]

    The minor planet is named after the location of the discovering observatory, High Tatras (Czech: Vysoké Tatry), the highest mountain range in northern Slovakia.[2] Naming citation was published on 1 February 1980 (M.P.C. 5183).[13]

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 1989 Tatry (1955 FG)" (2016-06-16 last obs.). Jet Propulsion Laboratory. Retrieved 2 November 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1989) Tatry. Springer Berlin Heidelberg. p. 161. ISBN 978-3-540-00238-3. Retrieved 2 November 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (1989) Tatry". Asteroid Lightcurve Database (LCDB). Retrieved 2 November 2016.
    4. 1 2 3 4 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:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 2 November 2016.
    5. 1 2 3 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:1109.4096Freely accessible. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 2 November 2016.
    6. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 2 November 2016.
    7. 1 2 3 4 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" (PDF). Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 2 November 2016.
    8. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1989) Tatry". Geneva Observatory. Retrieved 2 November 2016.
    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 2 November 2016.
    10. 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 2 November 2016.
    11. ↑ 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 2 November 2016.
    12. 1 2 "1989 Tatry (1955 FG)". Minor Planet Center. Retrieved 2 November 2016.
    13. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 2 November 2016.

    External links

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