803 Picka information

803 Picka
	Modelled shape of Picka from its lightcurve
Discovery
Discovered by	J. Palisa
Discovery site	Vienna Obs.
Discovery date	21 March 1915
Designations
MPC designation	(803) Picka
Named after	Friedrich Pick; (Czech physician)
Alternative designations	A915 FL · 1952 YH; 1984 EC2 · A899 NE; A915 FD · 1915 WS
Minor planet category	main-belt · (outer); background ;
Orbital characteristics
	Epoch 31 May 2020 (JD 2459000.5)
	Uncertainty parameter 0
Observation arc	104.50 yr (38,169 d)
Aphelion	3.4133 AU
Perihelion	2.9929 AU
Semi-major axis	3.2031 AU
Eccentricity	0.0656
Orbital period (sidereal)	5.73 yr (2,094 d)
Mean anomaly	338.93°
Mean motion	0° 10m 18.84s / day
Inclination	8.6665°
Longitude of ascending node	250.95°
Argument of perihelion	58.556°
Physical characteristics
Mean diameter	46.50±2.2 km; 57.41±0.95 km; 69.165±8.353 km;
Synodic rotation period	5.0742±0.0006 h
Pole ecliptic latitude	(218.0°, 34.0°) (λ1/β1); (53.0°, 41.0°) (λ2/β2);
Geometric albedo	0.035±0.102; 0.079±0.003; 0.1181±0.012;
Spectral type	TD (SMASS-I, Xu); D (SDSS-MOC); V–R = 0.488±0.011;
Absolute magnitude (H)	9.30; 9.4; 9.60;

803 Picka (prov. designation: A915 FL or 1915 WS) is a large and dark background asteroid from the outer regions of the asteroid belt. It was discovered on 21 March 1915, by Austrian astronomer Johann Palisa at the Vienna Observatory.^[1] The carbonaceous D-type asteroid has a rotation period of 5.1 hours and measures approximately 57 kilometers (35 miles) in diameter. It was named after Czech physician Friedrich Pick (1867–1921).^[2]

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[springer-2] Cite error: The named reference springer was invoked but never defined (see the help page).

[jpldata-3] Cite error: The named reference jpldata was invoked but never defined (see the help page).

[AstDys-object-4] Cite error: The named reference AstDys-object was invoked but never defined (see the help page).

[Ferret-5] Cite error: The named reference Ferret was invoked but never defined (see the help page).

[Zappala-family-6] Cite error: The named reference Zappala-family was invoked but never defined (see the help page).

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[AKARI-8] Cite error: The named reference AKARI was invoked but never defined (see the help page).

[Mainzer-2016-9] Cite error: The named reference Mainzer-2016 was invoked but never defined (see the help page).

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[Warner-2007i-12] Cite error: The named reference Warner-2007i was invoked but never defined (see the help page).

[lcdb-13] Cite error: The named reference lcdb was invoked but never defined (see the help page).

803 Picka information

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803 Picka

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Discovery ^[1]
Modelled shape of Picka from its lightcurve
Discovered by	J. Palisa
Discovery site	Vienna Obs.
Discovery date	21 March 1915
Designations
MPC designation	(803) Picka
Named after	Friedrich Pick (Czech physician)^[2]
Alternative designations	A915 FL · 1952 YH 1984 EC₂ · A899 NE A915 FD · 1915 WS
Minor planet category	main-belt ^[1]^[3] · (outer) background ^[4]^[5]^[6]
Orbital characteristics ^[3]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc	104.50 yr (38,169 d)
Aphelion	3.4133 AU
Perihelion	2.9929 AU
Semi-major axis	3.2031 AU
Eccentricity	0.0656
Orbital period (sidereal)	5.73 yr (2,094 d)
Mean anomaly	338.93°
Mean motion	0° 10^m 18.84^s / day
Inclination	8.6665°
Longitude of ascending node	250.95°
Argument of perihelion	58.556°
Physical characteristics
Mean diameter	46.50±2.2 km^[7] 57.41±0.95 km^[8] 69.165±8.353 km^[9]
Synodic rotation period	5.0742±0.0006 h^[10]
Pole ecliptic latitude	(218.0°, 34.0°) (λ₁/β₁)^[5] (53.0°, 41.0°) (λ₂/β₂)^[5]
Geometric albedo	0.035±0.102^[9] 0.079±0.003^[8] 0.1181±0.012^[7]
Spectral type	TD (SMASS-I, Xu)^[5] D (SDSS-MOC)^[11] V–R = 0.488±0.011^[12]
Absolute magnitude (H)	9.30^[9] 9.4^[1]^[3]^[13] 9.60^[7]^[8]