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169820 (2002 QO57)
Classification: Main-belt Asteroid          SPK-ID: 2169820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05283333680898577 6.4843e-08  
a 2.718830659456784 2.8268e-08 au
q 2.575185763499107 1.7569e-07 au
i 4.459225560334617 6.8376e-06 deg
node 311.6807679003201 8.0148e-05 deg
peri 33.49262300556259 9.7161e-05 deg
M 335.410044162562 5.7148e-05 deg
tp 2459112.347662674401
(2020-Sep-19.84766267)
0.00026063 TDB
period 1637.463638770791
4.48
2.5538e-05
6.992e-08
d
yr
n .2198522101353312 3.4288e-09 deg/d
Q 2.862475555414461 2.9762e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      7057 days (19.32 yr)  
   first obs. used      2000-01-12  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61136  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:39:36  

Additional Information
 Earth MOID = 1.5683 au 
 Jupiter MOID = 2.37395 au 
 T_jup = 3.353 
[ 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 16.4   n/a MPO436847  
diameter diameter 2.914 km 0.435 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

169820 (2002 QO57)          Discovered 2002-Aug-17 by Lowe, A. at Palomar
Reference: 20071124/Numbers.arcLast Updated: 2007-11-26

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