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175660 (1981 QC3)
Classification: Main-belt Asteroid          SPK-ID: 2175660
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3176606707420088 5.1445e-08  
a 2.563903109586964 1.0144e-08 au
q 1.749451928078047 1.3372e-07 au
i 6.405903879002436 4.3393e-06 deg
node 144.6657690732069 4.1017e-05 deg
peri 203.2718238510324 4.1502e-05 deg
M 200.4524816170367 5.3353e-06 deg
tp 2459865.066420457433
(2022-Oct-12.56642046)
2.3143e-05 TDB
period 1499.51508985816
4.11
8.8988e-06
2.436e-08
d
yr
n .2400776107121754 1.4247e-09 deg/d
Q 3.378354291095881 1.3366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      832  
   data-arc span      14440 days (39.53 yr)  
   first obs. used      1981-08-24  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51317  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:18  

Additional Information
 Earth MOID = .74292 au 
 Jupiter MOID = 2.05398 au 
 T_jup = 3.352 
[ 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 16.25   n/a E2021B55  
diameter diameter 2.980 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.06056 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.079   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

175660 (1981 QC3)          Discovered 1981-Aug-24 by Debehogne, H. at La Silla
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

Alternate Designations
 1981 QC3 = 2006 WJ190 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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