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JPL Small-Body Database Browser
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27027 (1998 QA98)
Classification: Main-belt Asteroid          SPK-ID: 2027027
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621147695949349 5.5404e-08  
a 2.452643575822687 8.6563e-09 au
q 2.055033827629694 1.37e-07 au
i 6.583756014677824 5.3775e-06 deg
node 310.7624892832483 3.188e-05 deg
peri 188.5325629173594 3.4225e-05 deg
M 117.6025279978411 1.0768e-05 deg
tp 2458542.184818119369
(2019-Feb-27.68481812)
4.2243e-05 TDB
period 1402.975499642796
3.84
7.4274e-06
2.034e-08
d
yr
n .256597495887603 1.3584e-09 deg/d
Q 2.850253324015679 1.006e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1759  
   data-arc span      8028 days (21.98 yr)  
   first obs. used      1997-06-29  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48924  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:55:43  

Additional Information
 Earth MOID = 1.06871 au 
 Jupiter MOID = 2.18452 au 
 T_jup = 3.468 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO474120  
diameter diameter 7.445 km 3.239 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.139   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

27027 (1998 QA98)          Discovered 1998-Aug-28 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QA98 = 1997 MP5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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