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JPL Small-Body Database Browser
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449 Hamburga (A899 UE)
Classification: Main-belt Asteroid          SPK-ID: 2000449
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1727689260751903 4.5322e-08  
a 2.551005650007843 7.818e-09 au
q 2.110271143444245 1.1725e-07 au
i 3.084765382898937 3.6006e-06 deg
node 85.91961641016916 8.8331e-05 deg
peri 47.2674429130435 8.8998e-05 deg
M 13.96075542087308 1.0494e-05 deg
tp 2458542.787222527005
(2019-Feb-28.28722253)
4.337e-05 TDB
period 1488.214588962315
4.07
6.8413e-06
1.873e-08
d
yr
n .2419005986569562 1.112e-09 deg/d
Q 2.991740156571441 9.1687e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2648  
   data-arc span      43653 days (119.52 yr)  
   first obs. used      1899-11-02  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45595  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:07:42  

Additional Information
 Earth MOID = 1.12652 au 
 Jupiter MOID = 2.05454 au 
 T_jup = 3.417 
[ 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 9.9   n/a MPO473767 IRAS observations used: 21
diameter diameter 85.59 km 1.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
rotation period rot_per 18.263 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:
[Brinsfield, J.W. (2010) Minor Planet Bull. 37, 50-53.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.0393   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
B-V BV 0.701   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=6.23, mean=14.44, max.=22.66) deg.
U-B UB 0.378   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=6.23, mean=14.44, max.=22.66) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

449 Hamburga (A899 UE)          Discovered 1899-Oct-31 by Wolf, M. and Schwassmann, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A899 UE = 1947 OA = 1948 TO = A901 EA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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