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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06938109841614415 3.0473e-08  
a 2.255076251682907 5.248e-09 au
q 2.098616584328985 6.7633e-08 au
i 3.789462562385947 3.1677e-06 deg
node 354.71083081 4.9726e-05 deg
peri 119.8926205193809 5.5547e-05 deg
M 119.2396038061723 2.476e-05 deg
tp 2458590.807232166249
(2019-Apr-17.30723217)
8.4756e-05 TDB
period 1236.916189858355
3.39
4.3178e-06
1.182e-08
d
yr
n .2910463966368046 1.016e-09 deg/d
Q 2.411535919036828 5.6122e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2763  
   data-arc span      37930 days (103.85 yr)  
   first obs. used      1916-10-01  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42274  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:23:22  

Additional Information
 Earth MOID = 1.11789 au 
 Jupiter MOID = 2.6308 au 
 T_jup = 3.618 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456716.5 (2014-Feb-28.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06924863873240995 3.0516e-08  
q 2.099215682881772 6.7739e-08 au
tp 2456117.735838863691
(2012-Jul-09.23583886)
8.3481e-05 TDB
node 354.73612449733 4.9709e-05 deg
peri 120.166858590192 5.5531e-05 deg
i 3.79056689969007 3.1675e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2763  
   data-arc span      37930 days (103.85 yr)  
   first obs. used      1916-10-01  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42274  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:23:22  

Additional Information
 Jupiter MOID = 2.6308 au 
 T_jup = 3.618 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.312235541667127E-16 -2.06203192204152E-15 -1.354508118620106E-13 -6.05379196044628E-15 -4.916568267252431E-14 -1.765512882666572E-16
q -2.06203192204152E-15 4.588598312622064E-15 3.45854939237655E-13 1.347171300230365E-14 1.247460904198248E-13 4.355632574112469E-16
tp -1.354508118620106E-13 3.45854939237655E-13 6.969123253303948E-9 -1.495253196636237E-12 2.076376032594342E-9 -1.415073558159549E-12
node -6.05379196044628E-15 1.347171300230365E-14 -1.495253196636237E-12 2.471017138901188E-9 -2.465443849559007E-9 7.583141624669234E-12
peri -4.916568267252431E-14 1.247460904198248E-13 2.076376032594342E-9 -2.465443849559007E-9 3.083729078626561E-9 -7.971471529047957E-12
i -1.765512882666572E-16 4.355632574112469E-16 -1.415073558159549E-12 7.583141624669234E-12 -7.971471529047957E-12 1.003337000026554E-11

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 12.8   n/a MPO473773  
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. 2019-August); 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2184-Feb-09 06:14 < 00:01 Juno 0.0368306133359802 0.0368279690279705 0.0368332609726453 6.82630765129633 6.82630760290682 2518788.759720154 0.61774714350436 579.264445985732 27.1789183774107 -77.1119796156898 197556.739602511 T 35 CATAB v2.0f-lin.ifort 2020-Aug-24 22:23:34 2020-Aug-24 22:23

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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