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JPL Small-Body Database Browser
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810 Atossa (A915 RS)
Classification: Main-belt Asteroid          SPK-ID: 2000810
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1805110437494891 3.4413e-08  
a 2.17850548181263 3.8787e-09 au
q 1.785261183476649 7.4631e-08 au
i 2.612200110565793 3.3388e-06 deg
node 152.6916223656219 6.8408e-05 deg
peri 195.8434971756681 6.8857e-05 deg
M 198.292799237478 8.9956e-06 deg
tp 2459528.049567174996
(2021-Nov-09.54956718)
2.9873e-05 TDB
period 1174.455084791837
3.22
3.1366e-06
8.588e-09
d
yr
n .306525132090349 8.1863e-10 deg/d
Q 2.571749780148612 4.5789e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3217  
   data-arc span      38219 days (104.64 yr)  
   first obs. used      1915-09-08  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42768  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:13:17  

Additional Information
 Earth MOID = .778841 au 
 Jupiter MOID = 2.84359 au 
 T_jup = 3.660 
[ 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 12.5   n/a MPO416712  
diameter diameter 8.104 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.385 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
geometric albedo albedo 0.224   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

810 Atossa (A915 RS)          Discovered 1915-Sep-08 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A915 RS = 1931 PF = 1934 NB = 1947 PA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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