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269703 (1997 UR7)
Classification: Main-belt Asteroid          SPK-ID: 2269703
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2509989492410212 6.3262e-08  
a 2.410479546996401 1.7071e-08 au
q 1.805451713533331 1.5432e-07 au
i 9.877550604094184 8.7778e-06 deg
node 39.85234055151908 3.1428e-05 deg
peri 315.3126994759003 3.5727e-05 deg
M 40.84710982865828 1.9254e-05 deg
tp 2458845.399772285235
(2019-Dec-27.89977229)
7.2001e-05 TDB
period 1366.953065015656
3.74
1.4521e-05
3.976e-08
d
yr
n .2633594446023477 2.7976e-09 deg/d
Q 3.01550738045947 2.1356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      8396 days (22.99 yr)  
   first obs. used      1997-10-23  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6572  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:05:12  

Additional Information
 Earth MOID = .817252 au 
 Jupiter MOID = 2.46734 au 
 T_jup = 3.457 
[ 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 16.6   n/a MPO440320  

269703 (1997 UR7)          Discovered 1997-Oct-23 by Sarounova, L. at Ondrejov
Reference: 20110418/Numbers.arcLast Updated: 2011-04-22

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Alternate Designations
 1997 UR7 = 2008 SY223 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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