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554 Peraga (A905 AE)
Classification: Main-belt Asteroid          SPK-ID: 2000554
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 114 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1518934617098955 2.7103e-08  
a 2.375497318695578 4.5415e-09 au
q 2.014674807676332 6.4766e-08 au
i 2.935270734344895 3.3306e-06 deg
node 295.3937178822102 5.8858e-05 deg
peri 127.5402394477605 5.9974e-05 deg
M 286.3260691484551 1.2652e-05 deg
tp 2459474.179069796391
(2021-Sep-16.67906980)
4.7336e-05 TDB
period 1337.304308157934
3.66
3.835e-06
1.05e-08
d
yr
n .2691982653491045 7.7198e-10 deg/d
Q 2.736319829714824 5.2313e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3127  
   data-arc span      45402 days (124.30 yr)  
   first obs. used      1896-09-07  
   last obs. used      2020-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:40  

Additional Information
 Earth MOID = 1.02886 au 
 Jupiter MOID = 2.56243 au 
 T_jup = 3.524 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455291.5 (2010-Apr-05.0) TDB
Reference: JPL 114 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1530462223028503 2.7289e-08  
q 2.011808013244439 6.5337e-08 au
tp 2455462.006999019510
(2010-Sep-22.50699902)
4.3059e-05 TDB
node 295.5138192006993 5.886e-05 deg
peri 127.0965276764559 5.994e-05 deg
i 2.935881046695729 3.3298e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3127  
   data-arc span      45402 days (124.30 yr)  
   first obs. used      1896-09-07  
   last obs. used      2020-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:40  

Additional Information
 Jupiter MOID = 2.56243 au 
 T_jup = 3.524 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.44688577133919E-16 -1.780032782989232E-15 4.341215117842005E-14 -1.235863151664748E-15 -4.993163590471619E-15 -1.167040731236144E-16
q -1.780032782989232E-15 4.268873091102033E-15 -6.410407016597407E-14 3.343515963813545E-15 2.018479596210327E-14 2.861238962525245E-16
tp 4.341215117842005E-14 -6.410407016597407E-14 1.854036685908487E-9 2.709336722575858E-12 4.947667727281037E-10 -3.601095740210689E-13
node -1.235863151664748E-15 3.343515963813545E-15 2.709336722575858E-12 3.464486689867192E-9 -3.458901675268593E-9 2.458773813786293E-11
peri -4.993163590471619E-15 2.018479596210327E-14 4.947667727281037E-10 -3.458901675268593E-9 3.592829329324287E-9 -2.464499731131889E-11
i -1.167040731236144E-16 2.861238962525245E-16 -3.601095740210689E-13 2.458773813786293E-11 -2.464499731131889E-11 1.108726250099626E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.12   n/a E2021B10  
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. 2020-October); 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 Bull. 34, 30.]
[Stephens, R.D. (2007) Minor Planet Bull. 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 0.676   0.052 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=3.99, mean=10.80, max.=23.68) deg.
U-B UB 0.342   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 (A905 AE)          Discovered 1905-Jan-08 by Gotz, P. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A905 AE = A896 RB = A900 UC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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