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947 Monterosa
Discovery
Discovered by	A. Schwassmann
Discovery site	Bergedorf
Discovery date	8 February 1921
Designations
MPC designation	(947) Monterosa
Alternative designations	1921 JD
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	109.28 yr (39915 days)
Aphelion	3.4384 AU (514.38 Gm)
Perihelion	2.0641 AU (308.78 Gm)
Semi-major axis	2.7513 AU (411.59 Gm)
Eccentricity	0.24975
Orbital period (sidereal)	4.56 yr (1666.8 d)
Mean anomaly	61.4561°
Mean motion	0° 12m 57.528s / day
Inclination	6.7071°
Longitude of ascending node	48.349°
Argument of perihelion	338.212°
Physical characteristics
Mean radius	13.45±0.85 km
Synodic rotation period	5.164 h (0.2152 d)
Geometric albedo	0.2937±0.040
Absolute magnitude (H)	9.9

947 Monterosa is a minor planet orbiting the Sun.

Observations performed at the Palmer Divide Observatory in Colorado Springs, Colorado during 2007 produced a light curve with a period of 5.164 ± 0.001 hours with a brightness range of 0.23 ± 0.02 in magnitude. This differs from a period of 2.376 hours reported in 2007.^[2]

References

^ "947 Monterosa (1921 JD)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 2 May 2016.
^ Warner, Brian D. (September 2007), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory", The Minor Planet Bulletin, Bibcode:2007MPBu...34...72W.

External links

Lightcurve plot of 947 Monterosa, Palmer Divide Observatory, B. D. Warner (2007)
Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
947 Monterosa at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
947 Monterosa at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

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[jpldata-1] "947 Monterosa (1921 JD)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 2 May 2016.

[Warner2007-2] Warner, Brian D. (September 2007), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory", The Minor Planet Bulletin, Bibcode:2007MPBu...34...72W.

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