(702) Alauda and S/2007 (702) 1
compiled by Wm. Robert Johnston
last updated 29 November 2008
Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):
orbital data, primary (osculating elements) [JPL]:
|
semimajor axis a: |
3.19235834 AU
| |
orbital period P: |
5.70 y (=2083.36747 d)
| |
eccentricity e: |
0.02225503
| |
perihelion distance q: |
3.1213123 AU
| |
aphelion distance Q: |
3.26340437 AU
| |
inclination i: |
20.611544°
| |
argument of perihelion omega: |
352.4506°
| |
ascending node OMEGA: |
289.96636°
| |
mean anomaly M: |
12.19288°
| |
perihelion passage TP: |
2007-01-29.438
| |
Epoch: |
10 APR 2007
| |
data arc: |
1910-2007 (726 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(separation 900 km) [C1016]
| |
semimajor axis/primary radius a/Rp: |
(9?)
| |
orbital period P: |
(~3 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
194.7 ± 3.2 km [IR]
| |
absolute magnitude H: |
7.25 [JPL]
| |
rotation period: |
8.36 h [JPL]
| |
amplitude delta M: |
?
| |
color index B-V: |
0.665 ± 0.022 [JPL]
| |
color index U-B: |
0.316 ± 0.014 [JPL]
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) assumed
| |
geometric albedo: |
(0.058)
| |
mass: |
?
| |
density: |
?
| |
type: |
B (SMASSII) [C1016]
|
other data, secondary:
|
diameter: |
(~6 km)
| |
diameter ratio Ds/Dp: |
(0.03) [C1016]
| |
component magnitude difference: |
(7.7) [C1016]
| |
rotation period: |
?
|
|
--(702) Alauda--discovery and notes:
Primary discovered 16 July 1910 by J. Helffrich from Heidelberg. Alternate designation 1910 KQ.
Companion discovered by P. Rojo and J. L. Margot on 26 July 2007 using the ESO Very Large Telescope (adaptive optics) on Cerro Paranal, Chile; reported 2 August 2007.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Rojo, P. & Margot, J. L. 2007, Central Bureau Electronic Telegrams S/2007 (702) 1
- Fauerbach, Michael & Bennett, Thomas 2005, Minor Planet Bulletin Photometric lightcurve observations of 125 Liberatrix, 218 Bianca, 423 Diotima, 702 Alauda, 1963 Bezovec, and (5849) 1990 HF1
- Bus, S. & Binzel, R. P. 2004, NASA Planetary Data System, EAR-A-I0028-4-SBN0001/SMASSII-V1.0:702ALAUDA01 702 Alauda CCD Spectrum
- Scardia, M., Ghiringhelli, D., & Debehogne, H. 1993, Astronomische Nachrichten Revised orbital elements of minor planets
- Pfleiderer, J., Pfleiderer, M., & Hanslmeier, A. 1987, Astronomy and Astrophysics Supplement Series Photoelectric five-colour photometry of the asteroids 16 Psyche, 201 Penelope and 702 Alauda
- di Martino, M., Zappala, V., de Campos, J. A., Debehogne, H., & Lagerkvist, C.-I. 1987, Astronomy and Astrophysics Supplement Series Rotational properties and lightcurves of the minor planets 94, 107, 197, 201, 360, 451, 511 and 702
- Renaux, J. 1922, Journal des Observateurs Eléments de la planète 702 [1910 KQ]
© 2007, 2008 by Wm. Robert Johnston.
Last modified 29 November 2008.
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