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JPL Small-Body Database Browser
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1018 Arnolda (A924 ET)
Classification: Main-belt Asteroid          SPK-ID: 2001018
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .243979754387198 3.6656e-08  
a 2.541380499616585 7.637e-09 au
q 1.921335109515716 9.248e-08 au
i 7.6334193063294 4.3152e-06 deg
node 359.6277348862033 2.8776e-05 deg
peri 343.0825214684427 3.0558e-05 deg
M 350.1700452238077 1.109e-05 deg
tp 2458640.906569975683
(2019-Jun-06.40656998)
4.5612e-05 TDB
period 1479.799808080159
4.05
6.6703e-06
1.826e-08
d
yr
n .2432761499456143 1.0966e-09 deg/d
Q 3.161425889717453 9.5003e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2850  
   data-arc span      34999 days (95.82 yr)  
   first obs. used      1924-02-01  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4099  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:15:51  

Additional Information
 Earth MOID = .914375 au 
 Jupiter MOID = 2.25296 au 
 T_jup = 3.391 
[ 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 10.62   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
diameter diameter 16.557 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.617 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pligge, Z.; Monnier, A.; Pharo, J.; Stolze, K.; Yim, A.; Ditteon, R. (2011) Minor Planet Bull. 38, 5-7.]
[Aznar, A.; Garceran, A.C.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 174-181.]
geometric albedo albedo 0.371   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1018 Arnolda (A924 ET)          Discovered 1924-Mar-03 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A924 ET = 1926 VK = 1952 BV1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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