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JPL Small-Body Database Browser
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480 Hansa (A901 KB)
Classification: Main-belt Asteroid          SPK-ID: 2000480
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 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04620707142297597 4.01e-08  
a 2.64422813042321 8.5471e-09 au
q 2.522046092342102 1.0682e-07 au
i 21.30483387369859 4.3946e-06 deg
node 237.1794028541791 1.2399e-05 deg
peri 213.8383310587388 5.054e-05 deg
M 46.85117300770654 4.9108e-05 deg
tp 2458796.107584322998
(2019-Nov-08.60758432)
0.00021419 TDB
period 1570.532068249764
4.30
7.6148e-06
2.085e-08
d
yr
n .2292216805233351 1.1114e-09 deg/d
Q 2.766410168504317 8.942e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2937  
   data-arc span      43356 days (118.70 yr)  
   first obs. used      1901-05-22  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:28:31  

Additional Information
 Earth MOID = 1.54874 au 
 Jupiter MOID = 2.45785 au 
 T_jup = 3.295 
[ 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 8.3   n/a MPO502157 IRAS observations used: 16
diameter diameter 56.22 km 2.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
rotation period rot_per 16.19 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[De Young, J.A. (1994) Minor Planet Bull. 21, 33-34.]
[Richmond, E.H.; Neely, A.W. (1994) Minor Planet Bull. 21, 37-38.]
[Mohamed, R.A.; Krugly, Yu.N.; Lupishko, D.F. (1995) Astron. J. 109, 1877-1879.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.2485   0.024 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
B-V BV 0.854   0.017 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=10.53, mean=18.31, max.=22.39) deg.
U-B UB 0.439   0.041 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=10.53, mean=18.31, max.=22.39) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

480 Hansa (A901 KB)          Discovered 1901-May-21 by Wolf, M. and Carnera, L. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A901 KB = A905 JA = A911 UJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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