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11599 (1995 QR)
Classification: Main-belt Asteroid          SPK-ID: 2011599
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1790011440159233 4.5967e-08  
a 2.437695191892035 1.2453e-08 AU
q 2.001344963781245 1.1167e-07 AU
i 2.722591679975527 4.9354e-06 deg
node 38.05062656839757 0.00010765 deg
peri 278.0182921698226 0.00010889 deg
M 30.98182872146964 1.3719e-05 deg
tp 2456880.861192411631
(2014-Aug-11.36119241)
5.3139e-05 JED
period 1390.168770185158
3.81
1.0652e-05
2.916e-08
d
yr
n .2589613633401153 1.9843e-09 deg/d
Q 2.874045420002825 1.4682e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      948  
   data-arc span      7564 days (20.71 yr)  
   first obs. used      1994-03-10  
   last obs. used      2014-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .536  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:12:54  

Additional Information
 Earth MOID = .990919 AU 
 T_jup = 3.480 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO319230  

11599 (1995 QR)          Discovered 1995-Aug-16 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 QR = 1998 HD21 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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