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841 Arabella (A916 TA)
Classification: Main-belt Asteroid          SPK-ID: 2000841
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06902072179948938 3.0411e-08  
a 2.25604735640289 5.2553e-09 au
q 2.100333339450133 6.746e-08 au
i 3.789653973221963 3.1426e-06 deg
node 354.6871022023339 4.97e-05 deg
peri 120.1940472397627 5.5544e-05 deg
M 177.1372167224775 2.4877e-05 deg
tp 2458591.484900919752
(2019-Apr-17.98490092)
8.5042e-05 TDB
period 1237.71525671188
3.39
4.3248e-06
1.184e-08
d
yr
n .2908584975807583 1.0163e-09 deg/d
Q 2.411761373355648 5.6181e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2844  
   data-arc span      37994 days (104.02 yr)  
   first obs. used      1916-10-01  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41982  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:03:58  

Additional Information
 Earth MOID = 1.11947 au 
 Jupiter MOID = 2.62893 au 
 T_jup = 3.617 
[ 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 12.78   n/a E2021B10  
diameter diameter 7.501 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.142 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 234-239.]
[Stephens, R. D.; Warner, B. D. (2019) MPB 46, 298-301.]
geometric albedo albedo 0.213   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

841 Arabella (A916 TA)          Discovered 1916-Oct-01 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A916 TA = 1928 DJ = 1930 YQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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