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69553 (1997 QS2)
Classification: Main-belt Asteroid          SPK-ID: 2069553
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714513918410555 3.6662e-08  
a 3.137275757204816 1.5688e-08 au
q 2.59938546204285 1.1924e-07 au
i 6.472953666234533 4.1709e-06 deg
node 71.67984857173195 3.7696e-05 deg
peri 12.20341358015396 3.992e-05 deg
M 301.0134720941464 1.2409e-05 deg
tp 2459333.065963866600
(2021-Apr-28.56596387)
7.0322e-05 TDB
period 2029.679508905206
5.56
1.5224e-05
4.168e-08
d
yr
n .1773679038589601 1.3304e-09 deg/d
Q 3.675166052366783 1.8377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1270  
   data-arc span      8478 days (23.21 yr)  
   first obs. used      1997-08-31  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:53:23  

Additional Information
 Earth MOID = 1.61585 au 
 Jupiter MOID = 1.57854 au 
 T_jup = 3.179 
[ 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 13.9   n/a MPO453097  
diameter diameter 7.691 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.090   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

69553 (1997 QS2)          Discovered 1997-Aug-31 by Moravec, Z. at Klet
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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