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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 85 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .156381449933657 3.2581e-08  
a 2.400584010085883 5.5013e-09 au
q 2.0251772019011 7.9559e-08 au
i 10.57539962000993 3.6112e-06 deg
node 194.4722759034919 1.8973e-05 deg
peri 192.0030370701218 2.2093e-05 deg
M 336.9523508573944 1.232e-05 deg
tp 2459287.475698172949
(2021-Mar-13.97569817)
4.6605e-05 TDB
period 1358.544255360949
3.72
4.6699e-06
1.279e-08
d
yr
n .2649895272674443 9.1089e-10 deg/d
Q 2.775990818270667 6.3615e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3025  
   data-arc span      42127 days (115.34 yr)  
   first obs. used      1905-09-19  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42315  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:51  

Additional Information
 Earth MOID = 1.02871 au 
 Jupiter MOID = 2.67798 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456657.5 (2013-Dec-31.0) TDB
Reference: JPL 85 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566563038834415 3.2581e-08  
q 2.02455606907807 7.9541e-08 au
tp 2456571.382650782352
(2013-Oct-05.88265078)
4.4003e-05 TDB
node 194.6323387745708 1.8984e-05 deg
peri 192.1672976971001 2.2087e-05 deg
i 10.57187255599209 3.6102e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3025  
   data-arc span      42127 days (115.34 yr)  
   first obs. used      1905-09-19  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42315  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:51  

Additional Information
 Jupiter MOID = 2.67798 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.06150475950988E-15 -2.587499209292393E-15 -1.731509645993767E-13 1.988775197892017E-15 -3.658842032043727E-14 -1.568904843189805E-15
q -2.587499209292393E-15 6.326722673300446E-15 4.455044284313049E-13 -4.415320566176297E-15 9.431825814032842E-14 3.858457030846263E-15
tp -1.731509645993767E-13 4.455044284313049E-13 1.936302033424001E-9 4.533123652961995E-12 5.088296841821605E-10 1.613006153385237E-12
node 1.988775197892017E-15 -4.415320566176297E-15 4.533123652961995E-12 3.604047136950032E-10 -3.525571619041977E-10 -3.502975208019403E-12
peri -3.658842032043727E-14 9.431825814032842E-14 5.088296841821605E-10 -3.525571619041977E-10 4.878205654575203E-10 3.841279590827554E-12
i -1.568904843189805E-15 3.858457030846263E-15 1.613006153385237E-12 -3.502975208019403E-12 3.841279590827554E-12 1.303326790391702E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.88   n/a E2021B10 IRAS observations used: 6
diameter diameter 28.903 km 0.433 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.6497 h n/a LCDB (Rev. 2020-October); 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, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.089   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
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 ]
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