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JPL Small-Body Database Browser
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1157 Arabia (1929 QC)
Classification: Main-belt Asteroid          SPK-ID: 2001157
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1448404479386033 3.6526e-08  
a 3.182712637577689 1.6392e-08 au
q 2.721727113491083 1.2062e-07 au
i 9.543639357473378 4.5728e-06 deg
node 336.1775578849374 2.358e-05 deg
peri 313.1888675882791 2.8381e-05 deg
M 300.4111332631431 1.7016e-05 deg
tp 2458943.786871707617
(2020-Apr-04.28687171)
9.8738e-05 TDB
period 2073.93227262541
5.68
1.6022e-05
4.387e-08
d
yr
n .1735832962106678 1.341e-09 deg/d
Q 3.643698161664295 1.8766e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2543  
   data-arc span      32853 days (89.95 yr)  
   first obs. used      1929-08-31  
   last obs. used      2019-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45806  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:15:28  

Additional Information
 Earth MOID = 1.71607 au 
 Jupiter MOID = 1.65743 au 
 T_jup = 3.161 
[ 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 10.0   n/a MPO448923  
diameter diameter 29.113 km 4.433 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 15.225 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Caspari, P.V. (2008) Minor Planet Bull. 35, 185-186.]
geometric albedo albedo 0.247   0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1157 Arabia (1929 QC)          Discovered 1929-Aug-31 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1929 QC = 1955 EC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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