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682 Hagar (A909 MA)
Classification: Main-belt Asteroid          SPK-ID: 2000682
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .172268218617463 3.2669e-08  
a 2.653053720728172 7.0661e-09 au
q 2.196016882361898 8.7052e-08 au
i 11.50813009885612 3.5058e-06 deg
node 190.7786559428108 1.818e-05 deg
peri 105.1490554407263 2.0902e-05 deg
M 271.0923279737578 1.2639e-05 deg
tp 2459590.311126150459
(2022-Jan-10.81112615)
5.6116e-05 TDB
period 1578.401528416404
4.32
6.3058e-06
1.726e-08
d
yr
n .2280788465538201 9.1119e-10 deg/d
Q 3.110090559094446 8.2833e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2778  
   data-arc span      40822 days (111.76 yr)  
   first obs. used      1909-06-17  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4346  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:44:46  

Additional Information
 Earth MOID = 1.21271 au 
 Jupiter MOID = 2.21481 au 
 T_jup = 3.340 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.32   n/a E2021B10  
rotation period rot_per 4.8503 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Kurtenkov, A.; Teneva, D.; Todorov, L.; Stoyanov, S. (2014) Minor Planet Bull. 41, 36.]
[Pilcher, F.; Franco, L. (2014) Minor Planet Bull. 41, 35-36.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

682 Hagar (A909 MA)          Discovered 1909-Jun-17 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A909 MA = 1943 GK = 1953 VU3 = 1975 VO5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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