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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2384237583447086 3.1389e-08  
a 2.252975119462111 5.3802e-09 au
q 1.715812324022835 6.9821e-08 au
i 5.684787022827734 4.3995e-06 deg
node 336.652569425243 3.5351e-05 deg
peri 77.07168970616111 3.6698e-05 deg
M 297.5826497300837 1.0307e-05 deg
tp 2459214.658762040484
(2020-Dec-31.15876204)
3.5675e-05 TDB
period 1235.187876466672
3.38
4.4245e-06
1.211e-08
d
yr
n .2914536378302233 1.044e-09 deg/d
Q 2.790137914901386 6.6629e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1957  
   data-arc span      41958 days (114.87 yr)  
   first obs. used      1905-09-19  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:18:32  

Additional Information
 Earth MOID = .737691 au 
 Jupiter MOID = 2.6113 au 
 T_jup = 3.581 
[ 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 12.30   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 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. 2019-August); 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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