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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01446382889742293 2.7093e-08  
a 2.91969882687542 1.0067e-08 au
q 2.877468802611487 8.1727e-08 au
i 2.403141871770856 2.9169e-06 deg
node 40.39280693971192 7.9131e-05 deg
peri 19.14841621485355 0.0001446 deg
M 248.3921433689059 0.00012193 deg
tp 2459565.434083065450
(2021-Dec-16.93408307)
0.00061792 TDB
period 1822.239724357371
4.99
9.4249e-06
2.58e-08
d
yr
n .1975590780883438 1.0218e-09 deg/d
Q 2.961928851139353 1.0213e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3261  
   data-arc span      32542 days (89.10 yr)  
   first obs. used      1931-10-12  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4109  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:02:59  

Additional Information
 Earth MOID = 1.88815 au 
 Jupiter MOID = 2.06195 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. 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:
[Clark, M. (2010) Minor Planet Bull. 37, 89-92.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
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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