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295475 (2008 QM18)
Classification: Main-belt Asteroid          SPK-ID: 2295475
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844540654873291 6.0491e-08  
a 2.577849761185211 3.0002e-08 au
q 2.102354892519059 1.4604e-07 au
i 12.86683649168957 1.0826e-05 deg
node 340.0713605773176 4.2696e-05 deg
peri 64.6932740903647 5.9413e-05 deg
M 256.720534004937 3.9515e-05 deg
tp 2459434.206882497003
(2021-Aug-07.70688250)
0.00016785 TDB
period 1511.76689571947
4.14
2.6392e-05
7.226e-08
d
yr
n .2381319507784771 4.1573e-09 deg/d
Q 3.053344629851364 3.5536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      6262 days (17.14 yr)  
   first obs. used      2002-03-10  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53955  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:40:30  

Additional Information
 Earth MOID = 1.145 au 
 Jupiter MOID = 2.52314 au 
 T_jup = 3.367 
[ 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 17.2   n/a MPO437321  

295475 (2008 QM18)          Discovered 2008-Aug-28 by Ferrando, R. at Pla D'Arguines
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 QM18 = 2004 SW53 = 2006 DB42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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