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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .177697601103994 3.4845e-08  
a 2.438355345654296 7.8563e-09 au
q 2.005065450092427 8.4143e-08 au
i 2.721450410812509 3.376e-06 deg
node 38.0291734068016 7.793e-05 deg
peri 278.1793728140299 7.8454e-05 deg
M 188.5406626658266 8.9581e-06 deg
tp 2459662.872909042776
(2022-Mar-24.37290904)
3.5446e-05 TDB
period 1390.733517129215
3.81
6.7214e-06
1.84e-08
d
yr
n .2588562047049248 1.251e-09 deg/d
Q 2.871645241216164 9.2524e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1697  
   data-arc span      9460 days (25.90 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49168  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:05:38  

Additional Information
 Earth MOID = .993775 au 
 Jupiter MOID = 2.41918 au 
 T_jup = 3.480 
[ 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 14.3   n/a MPO319230  

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

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