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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2441331186730817 3.6611e-08  
a 2.541986613328474 7.5012e-09 au
q 1.921403493791369 9.239e-08 au
i 7.632890480725027 4.2383e-06 deg
node 359.6200356542892 2.874e-05 deg
peri 343.1341297372267 3.0486e-05 deg
M 87.41839103541363 1.0965e-05 deg
tp 2458641.033333977663
(2019-Jun-06.53333398)
4.4889e-05 TDB
period 1480.32923318867
4.05
6.5525e-06
1.794e-08
d
yr
n .2431891446367982 1.0764e-09 deg/d
Q 3.16256973286558 9.3325e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2940  
   data-arc span      35036 days (95.92 yr)  
   first obs. used      1924-02-01  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40171  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:47:44  

Additional Information
 Earth MOID = .915355 au 
 Jupiter MOID = 2.25548 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 11.1   n/a MPO502162 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-August); 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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