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90920 (1997 QM3)
Classification: Main-belt Asteroid          SPK-ID: 2090920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2210420907672379 5.2813e-08  
a 2.238059211938719 6.8323e-09 au
q 1.743353924470908 1.1955e-07 au
i 4.595748225196769 5.2411e-06 deg
node 12.02439831747345 3.8259e-05 deg
peri 347.2298740405702 3.8938e-05 deg
M 293.0197042675296 6.8458e-06 deg
tp 2459228.036118579850
(2021-Jan-13.53611858)
2.3546e-05 TDB
period 1222.941788969087
3.35
5.6e-06
1.533e-08
d
yr
n .2943721469387942 1.348e-09 deg/d
Q 2.732764499406531 8.3425e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      14152 days (38.75 yr)  
   first obs. used      1980-07-12  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50644  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:20:14  

Additional Information
 Earth MOID = .740375 au 
 Jupiter MOID = 2.71753 au 
 T_jup = 3.600 
[ 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 15.2   n/a MPO385377  
rotation period rot_per 4.68 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

90920 (1997 QM3)          Discovered 1997-Aug-30 by ODAS at Caussols
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1997 QM3 = 1987 WT5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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