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243955 (2001 QW179)
Classification: Main-belt Asteroid          SPK-ID: 2243955
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2342077308516008 4.5926e-08  
a 2.680011272138649 2.0092e-08 au
q 2.052331913434344 1.2974e-07 au
i 7.907215409601467 5.4953e-06 deg
node 54.25602612055542 3.6028e-05 deg
peri 246.5877441037917 3.8008e-05 deg
M 36.47597210894807 1.1637e-05 deg
tp 2458438.129274167929
(2018-Nov-15.62927417)
5.1056e-05 TDB
period 1602.519629222056
4.39
1.8021e-05
4.934e-08
d
yr
n .2246462342397405 2.5263e-09 deg/d
Q 3.307690630842954 2.4798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      8599 days (23.54 yr)  
   first obs. used      1996-04-20  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58214  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:28:26  

Additional Information
 Earth MOID = 1.05158 au 
 Jupiter MOID = 1.97673 au 
 T_jup = 3.324 
[ 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 16.1   n/a MPO450094  
diameter diameter 3.381 km 0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243955 (2001 QW179)          Discovered 2001-Aug-25 by NEAT at Palomar
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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