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554 Peraga (1905 PS)
Classification: Main-belt Asteroid          SPK-ID: 2000554
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1536546646846502 2.8073e-08  
a 2.374240953517195 5.3269e-09 au
q 2.009427755923946 6.6363e-08 au
i 2.93486516411704 3.8188e-06 deg
node 295.4347585199581 6.8052e-05 deg
peri 127.3884802264157 6.9038e-05 deg
M 161.7698276370377 1.3241e-05 deg
tp 2456800.044763350190
(2014-May-22.54476335)
4.8693e-05 JED
period 1336.243527927455
3.66
4.4971e-06
1.231e-08
d
yr
n .2694119690580418 9.0669e-10 deg/d
Q 2.739054151110444 6.1454e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1637  
   data-arc span      41951 days (114.86 yr)  
   first obs. used      1900-10-01  
   last obs. used      2015-08-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56617  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 13:56:52  

Additional Information
 Earth MOID = 1.0233 au 
 Jupiter MOID = 2.56824 au 
 T_jup = 3.525 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.1 mag n/a MPO337246  
diameter diameter 95.87 km 4.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 37
rotation period rot_per 13.7128 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Scaltriti, F.; Zappala, V. (1979) Icarus 39, 124-130.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Higgins, D.; Warner, B.D.; Dymock, R.; Crow, M. (2007) Minor Planet Bul. 34, 30.]
[Stephens, R.D. (2007) Minor Planet Bul. 34, 31-32.]
geometric albedo albedo 0.0496   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 37
B-V BV .676 mag .052 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=3.99, mean=10.80, max.=23.68) deg.
U-B UB .342 mag .039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=3.99, mean=10.80, max.=23.68) deg.
Tholen spectral type spec_T FC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

554 Peraga (1905 PS)          Discovered 1905-Jan-08 by Gotz, P. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1905 PS = A896 RB = A900 UC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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