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572 Rebekka (A905 SF)
Classification: Main-belt Asteroid          SPK-ID: 2000572
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 77 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1576204837640884 4.2494e-08  
a 2.400130093178312 6.5034e-09 au
q 2.021820426794799 1.0129e-07 au
i 10.57900375561392 4.5092e-06 deg
node 194.5621166619134 2.0271e-05 deg
peri 191.935715525656 2.3477e-05 deg
M 178.0441610820572 1.3764e-05 deg
tp 2457928.799247111646
5.0621e-05 TDB
period 1358.158950960265
n .265064703763479 1.0773e-09 deg/d
Q 2.778439759561824 7.5284e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2369  
   data-arc span      41605 days (113.91 yr)  
   first obs. used      1905-09-19  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45955  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:09:54  

Additional Information
 Earth MOID = 1.0259 au 
 Jupiter MOID = 2.67172 au 
 T_jup = 3.487 
[ 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 10.94   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
diameter diameter 28.903 km 0.433 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 5.6497 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Lagerkvist, C.-I.; Bel'skaya, I.; Erikson, A.; Schevchenko, V.; et al. (1998) Astron. Astrophys. Suppl. Ser. 131, 55-62.]
[Warner, B.D. (2007) Minor Planet Bull. 34, 72-77.]
[Behrend, R. (2009) Observatoire de Geneve web site,]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.089   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.691   0.027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=10.84, mean=11.39, max.=11.93) deg.
U-B UB 0.308   0.036 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=10.84, mean=11.39, max.=11.93) deg.
Tholen spectral type spec_T XDC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B C   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)

572 Rebekka (A905 SF)          Discovered 1905-Sep-19 by Gotz, P. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A905 SF = A915 HA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2019-Dec-05 20:22 UT
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