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160552 (1998 QB71)
Classification: Main-belt Asteroid          SPK-ID: 2160552
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .3057070974693581 5.0365e-08  
a 2.745084654135308 1.9314e-08 au
q 1.905892792211926 1.3892e-07 au
i 8.896006874970631 6.228e-06 deg
node 209.0721536914032 3.9392e-05 deg
peri 172.7551610722585 4.0735e-05 deg
M 258.6621540076558 1.4062e-05 deg
tp 2459468.128754252220
(2021-Sep-10.62875425)
6.8316e-05 TDB
period 1661.238699937604
4.55
1.7533e-05
4.8e-08
d
yr
n .2167057630029457 2.2871e-09 deg/d
Q 3.584276516058689 2.5219e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      7554 days (20.68 yr)  
   first obs. used      1998-08-19  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62016  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:28:26  

Additional Information
 Earth MOID = .909635 au 
 Jupiter MOID = 1.88004 au 
 T_jup = 3.262 
[ 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 15.8   n/a MPO475384  

160552 (1998 QB71)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

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