1518 Rovaniemi

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1518 Rovaniemi
Synodic rotation period
5.247±0.001 h[9]
5.249±0.002 h[10]
0.24 (assumed)[3]
0.2631±0.0374[8]
0.295±0.063[7]
0.31±0.17[5]
0.340±0.195[6]
S[3]
12.3[8] · 12.34[6] · 12.4[1][3] · 12.68[5]

1518 Rovaniemi, provisional designation 1938 UA, is a stony Florian

Turku Observatory in 1938, the asteroid was later named after the Finnish city of Rovaniemi
.

Discovery

Rovaniemi was discovered on 15 October 1938, by Finnish astronomer

Uccle Observatory on 21 October 1938. The Minor Planet Center, however, only recognizes the first discoverer.[2][11]

The asteroid was first identified as 1928 TL at Simeiz Observatory on 7 October 1928.[a] The body's observation arc begins two weeks later at Simeiz on 21 October 1928, almost 10 years prior to the asteroid's official discovery observation at Turku.[11]

Orbit and classification

Rovaniemi is a member of the

402), a giant asteroid family and the largest family of stony asteroids in the main-belt.[3][4][12]: 23  It orbits the Sun in the inner main-belt at a distance of 1.9–2.5 AU once every 3 years and 4 months (1,212 days). Its orbit has an eccentricity of 0.14 and an inclination of 7° with respect to the ecliptic.[1]

Physical characteristics

Rovaniemi is an assumed stony

spectral type of the Flora family.[12]
: 23 

Rotation period

In January 2009, two rotational

U=2+/3).[9][10]

Spin axis

In 2013, an international study modeled a lightcurve from various data sources including the Uppsala Asteroid Photometric Catalogue and the Palomar Transient Factory survey. The lightcurve gave a concurring period of 5.25047 hours and allowed for the determination of two spin axis of (62.0°, 60.0°) and (265.0°, 45.0°) in ecliptic coordinates (λ, β).[13]

Diameter and albedo

According to the survey carried out by the

albedo between 0.2631 and 0.340.[5][6][7][8]

The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the Flora family's largest member and namesake – and calculates a diameter of 8.98 kilometers based on an absolute magnitude of 12.4.[3]

Naming

This

M.P.C. 3929).[14]

Notes

  1. Turin Observatory
    on 13 and 14 October 1928, lead to the assignment of Rovaniemi's first provisional designation, 1928 TL.

References

  1. ^ a b c d "JPL Small-Body Database Browser: 1518 Rovaniemi (1938 UA)" (2017-07-04 last obs.). Jet Propulsion Laboratory. Retrieved 6 September 2017.
  2. ^
    ISBN 978-3-540-00238-3
    .
  3. ^ a b c d e f g h "LCDB Data for (1518) Rovaniemi". Asteroid Lightcurve Database (LCDB). Retrieved 6 September 2017.
  4. ^ a b "Asteroid 1518 Rovaniemi – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
  5. ^
    doi:10.3847/0004-6256/152/3/63
    .
  6. ^
    doi:10.1088/2041-8205/759/1/L8
    . Retrieved 6 September 2017.
  7. ^
    doi:10.1088/0004-637X/741/2/68
    . Retrieved 6 September 2017.
  8. ^
    doi:10.1088/0004-637X/741/2/90
    .
  9. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1518) Rovaniemi". Geneva Observatory. Retrieved 6 September 2017.
  10. ^
    ISSN 1052-8091
    . Retrieved 6 September 2017.
  11. ^ a b "1518 Rovaniemi (1938 UA)". Minor Planet Center. Retrieved 6 September 2017.
  12. ^
    ISBN 978-0-8165-3213-1
    .
  13. doi:10.1051/0004-6361/201220701
    . Retrieved 6 September 2017.
  14. ISBN 978-3-642-01964-7
    .

External links
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