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1840 Hus (1971 UY)
Classification: Main-belt Asteroid          SPK-ID: 2001840
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01567986066625917 3.4396e-08  
a 2.9188358768775 1.1483e-08 au
q 2.873068937020383 9.941e-08 au
i 2.407723394824831 3.7897e-06 deg
node 40.52549407954914 8.2243e-05 deg
peri 14.25044202609518 0.00013995 deg
M 174.3097166029815 0.00011399 deg
tp 2457718.574222717732
(2016-Nov-26.07422272)
0.00057532 TDB
period 1821.431908725768
4.99
1.0748e-05
2.943e-08
d
yr
n .19764669668703 1.1663e-09 deg/d
Q 2.964602816734618 1.1663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2798  
   data-arc span      32089 days (87.85 yr)  
   first obs. used      1931-10-12  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43107  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:20:30  

Additional Information
 Earth MOID = 1.88212 au 
 Jupiter MOID = 2.06924 au 
 T_jup = 3.279 
[ 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 11.7   n/a MPO337261  
diameter diameter 12.446 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.780 h n/a LCDB (Rev. 2019-January); 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:
[Clark, M. (2010) Minor Planet Bull. 37, 89-92.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.261   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1840 Hus (1971 UY)          Discovered 1971-Oct-26 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1971 UY = 1931 TS3 = 1935 NC = 1953 CG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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