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160549 (1998 QP20)
Classification: Main-belt Asteroid          SPK-ID: 2160549
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2939180417227229 3.515e-08  
a 2.741983435332686 1.5086e-08 au
q 1.936065033583558 9.4128e-08 au
i 4.254106100441199 4.6706e-06 deg
node 305.7391578634436 5.9185e-05 deg
peri 118.9544087161229 6.0063e-05 deg
M 275.36230873503 1.1081e-05 deg
tp 2459590.403357160014
(2022-Jan-10.90335716)
5.3469e-05 TDB
period 1658.424355387628
4.54
1.3687e-05
3.747e-08
d
yr
n .2170735124761577 1.7915e-09 deg/d
Q 3.547901837081813 1.952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      805  
   data-arc span      7973 days (21.83 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:49  

Additional Information
 Earth MOID = .953339 au 
 Jupiter MOID = 1.81387 au 
 T_jup = 3.282 
[ 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 14.88   n/a E2021B55  

160549 (1998 QP20)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 1998 QP20 = 2000 DN53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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