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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1778249299442692 3.4731e-08  
a 2.437973307151283 7.7745e-09 au
q 2.004440874601108 8.3828e-08 au
i 2.721649361761772 3.2974e-06 deg
node 38.02245916515604 7.7762e-05 deg
peri 278.2304773609305 7.8249e-05 deg
M 240.2652826906527 8.8994e-06 deg
tp 2459662.944308478885
(2022-Mar-24.44430848)
3.5042e-05 TDB
period 1390.406682318213
3.81
6.6508e-06
1.821e-08
d
yr
n .2589170525272326 1.2385e-09 deg/d
Q 2.871505739701458 9.157e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1791  
   data-arc span      9810 days (26.86 yr)  
   first obs. used      1994-03-10  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49168  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:01:28  

Additional Information
 Earth MOID = .991179 au 
 Jupiter MOID = 2.41922 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 14.36   n/a E2021B10  

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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