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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01446383114759958 3.4089e-08  
a 2.919698827558947 1.2132e-08 au
q 2.877468796715291 9.781e-08 au
i 2.403147921945986 3.7795e-06 deg
node 40.39283589963844 8.0404e-05 deg
peri 19.14838568383607 0.00014555 deg
M 248.3921446725483 0.00012235 deg
tp 2459565.434076665087
(2021-Dec-16.93407666)
0.0006202 TDB
period 1822.239724997275
4.99
1.1358e-05
3.11e-08
d
yr
n .1975590780189683 1.2313e-09 deg/d
Q 2.961928858402604 1.2307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2823  
   data-arc span      32115 days (87.93 yr)  
   first obs. used      1931-10-12  
   last obs. used      2019-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:06:22  

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. 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:
[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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