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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04619528790760949 9.0785e-09  
a 2.643778351172628 7.063e-09 au
q 2.521648249076303 2.29e-08 au
i 21.30551719716593 3.6971e-07 deg
node 237.1729162122157 1.9126e-06 deg
peri 213.6234792987815 3.4883e-05 deg
M 92.91735999675828 3.2308e-05 deg
tp 2458795.243162440427
(2019-Nov-07.74316244)
0.00014124 TDB
period 1570.131367556465
4.30
6.292e-06
1.723e-08
d
yr
n .2292801783587409 9.188e-10 deg/d
Q 2.765908453268952 7.3892e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3256  
   data-arc span      43769 days (119.83 yr)  
   first obs. used      1901-05-22  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40163  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:27:48  

Additional Information
 Earth MOID = 1.54761 au 
 Jupiter MOID = 2.45743 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 8.28   n/a MPCxxxxx 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. 2020-October); 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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