5025 Mecisteus information

5025 Mecisteus
	Hubble Space Telescope image of Mecisteus taken in 2013
Discovery
Discovered by	M. Antal
Discovery site	Toruń–Piwnice
Discovery date	5 October 1986
Designations
MPC designation	(5025) Mecisteus
Named after	Mecisteus; (Greek mythology)
Alternative designations	1986 TS6 · 1989 BX
Minor planet category	Jupiter trojan; Greek · background
Orbital characteristics
	Epoch 23 March 2018 (JD 2458200.5)
	Uncertainty parameter 0
Observation arc	31.64 yr (11,555 d)
Aphelion	5.5876 AU
Perihelion	4.8117 AU
Semi-major axis	5.1996 AU
Eccentricity	0.0746
Orbital period (sidereal)	11.86 yr (4,331 d)
Mean anomaly	221.74°
Mean motion	0° 4m 59.16s / day
Inclination	11.021°
Longitude of ascending node	347.79°
Argument of perihelion	72.958°
Jupiter MOID	0.1039 AU
TJupiter	2.9580
Physical characteristics
Mean diameter	39.84±3.64 km; 57.56 km (derived); 57.83±4.9 km
Synodic rotation period	250±25 h
Geometric albedo	0.0404 (derived); 0.0635±0.012; 0.084±0.009
Spectral type	C/X (Pan-STARRS); C/X (SDSS-MOC); V–I = 0.830±0.042
Absolute magnitude (H)	9.8; 10.3

5025 Mecisteus, provisional designation: 1986 TS₆, is a larger Jupiter trojan from the Greek camp, approximately 50 kilometers (31 miles) in diameter. The unusual C/X-type Jovian asteroid is possibly a slow rotator with a rotation period of 250 hours.^[7] It was discovered on 5 October 1986 by Slovak astronomer Milan Antal at the Toruń Centre for Astronomy in Piwnice, Poland.^[1] In 2021, it was named from Greek mythology after the Greek hero Mecisteus who fought in the Trojan War.^[13]

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[MPC-object-1] Cite error: The named reference MPC-object was invoked but never defined (see the help page).

[WGSBN-Bulletin-Archive-2] Cite error: The named reference WGSBN-Bulletin-Archive 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).

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

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

[Grav-2012-6] Cite error: The named reference Grav-2012 was invoked but never defined (see the help page).

[lcdb-7] ^ ^a ^b ^c ^d ^e ^f Cite error: The named reference lcdb was invoked but never defined (see the help page).

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

[Mottola-2011-9] Cite error: The named reference Mottola-2011 was invoked but never defined (see the help page).

[Veres-2015-10] Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).

[SDSS-Taxonomy-11] Cite error: The named reference SDSS-Taxonomy was invoked but never defined (see the help page).

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

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

Discovery^[1]
Hubble Space Telescope image of Mecisteus taken in 2013
Discovered by	M. Antal
Discovery site	Toruń–Piwnice
Discovery date	5 October 1986
Designations
MPC designation	(5025) Mecisteus
Named after	Mecisteus (Greek mythology)^[1]^[2]
Alternative designations	1986 TS₆ · 1989 BX
Minor planet category	Jupiter trojan^[1]^[3] Greek^[4] · background^[5]
Orbital characteristics^[3]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc	31.64 yr (11,555 d)
Aphelion	5.5876 AU
Perihelion	4.8117 AU
Semi-major axis	5.1996 AU
Eccentricity	0.0746
Orbital period (sidereal)	11.86 yr (4,331 d)
Mean anomaly	221.74°
Mean motion	0° 4^m 59.16^s / day
Inclination	11.021°
Longitude of ascending node	347.79°
Argument of perihelion	72.958°
Jupiter MOID	0.1039 AU
T_Jupiter	2.9580
Physical characteristics
Mean diameter	39.84±3.64 km^[6] 57.56 km (derived)^[7] 57.83±4.9 km^[8]
Synodic rotation period	250±25 h^[9]
Geometric albedo	0.0404 (derived)^[7] 0.0635±0.012^[8] 0.084±0.009^[6]
Spectral type	C/X (Pan-STARRS)^[7]^[10] C/X (SDSS-MOC)^[11]^[12] V–I = 0.830±0.042^[7]
Absolute magnitude (H)	9.8^[8] 10.3^[1]^[3]^[7]^[6]