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5511 Cloanthus (1988 TH1)
Classification: Jupiter Trojan          SPK-ID: 2005511
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1172992872643006 3.8284e-08  
a 5.243975909553895 7.3532e-08 au
q 4.628861272932061 2.4186e-07 au
i 11.16746326851877 4.5683e-06 deg
node 172.6726580471888 2.1787e-05 deg
peri 121.3213567806901 3.1014e-05 deg
M 306.2788581495718 2.211e-05 deg
tp 2459655.033972860355
(2022-Mar-16.53397286)
0.00027113 TDB
period 4386.210384093869
12.01
9.2257e-05
2.526e-07
d
yr
n .08207540643866564 1.7263e-09 deg/d
Q 5.85909054617573 8.2158e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2170  
   data-arc span      25241 days (69.11 yr)  
   first obs. used      1951-07-30  
   last obs. used      2020-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47418  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:42:55  

Additional Information
 Earth MOID = 3.63038 au 
 Jupiter MOID = .0139312 au 
 T_jup = 2.948 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.3   n/a MPO439117  
diameter diameter 39.773 km 0.425 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 336. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
geometric albedo albedo 0.093   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

5511 Cloanthus (1988 TH1)          Discovered 1988-Oct-08 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1988 TH1 = 1989 VU3 = 1989 WA7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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