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574 Reginhild (A905 SH)
Classification: Main-belt Asteroid          SPK-ID: 2000574
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2384252255437203 2.8225e-08  
a 2.252695373159063 4.1373e-09 au
q 1.715595970732319 6.3774e-08 au
i 5.685068799941649 3.7172e-06 deg
node 336.651919410026 3.1713e-05 deg
peri 77.11490326742093 3.3007e-05 deg
M 355.8486916833958 7.5269e-06 deg
tp 2459214.740807509218
(2020-Dec-31.24080751)
2.5819e-05 TDB
period 1234.957828309936
3.38
3.4022e-06
9.315e-09
d
yr
n .2915079298640238 8.0307e-10 deg/d
Q 2.789794775585808 5.1237e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2494  
   data-arc span      42132 days (115.35 yr)  
   first obs. used      1905-09-19  
   last obs. used      2021-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:52  

Additional Information
 Earth MOID = .73671 au 
 Jupiter MOID = 2.61222 au 
 T_jup = 3.582 
[ show covariance matrix ]

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 12.40   n/a E2021B10 IRAS observations used: 4
diameter diameter 8.456 km 0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 14.339 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2011) Minor Planet Bull. 38, 76-78.]
geometric albedo albedo 0.298   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979)

574 Reginhild (A905 SH)          Discovered 1905-Sep-19 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A905 SH = 1947 BB = A912 YB = A922 TB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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