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17478 (1991 LQ)
Classification: Main-belt Asteroid          SPK-ID: 2017478
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1513622826169884 2.6912e-08  
a 2.579646265166309 1.0126e-08 au
q 2.189185118126348 7.166e-08 au
i 15.20598896839549 8.9967e-07 deg
node 94.11215369579436 3.0201e-06 deg
peri 206.1313032221164 6.6785e-06 deg
M 13.33062869499663 4.4191e-06 deg
tp 2459144.461462309463
(2020-Oct-21.96146231)
1.8483e-05 TDB
period 1513.347496968765
4.14
8.9104e-06
2.44e-08
d
yr
n .237883236151036 1.4006e-09 deg/d
Q 2.970107412206271 1.1658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1612  
   data-arc span      10687 days (29.26 yr)  
   first obs. used      1991-06-13  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48296  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:04:10  

Additional Information
 Earth MOID = 1.18016 au 
 Jupiter MOID = 2.23624 au 
 T_jup = 3.360 
[ 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 13.7   n/a MPO473999  
diameter diameter 5.075 km 0.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.207   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17478 (1991 LQ)          Discovered 1991-Jun-13 by Helin, E. F. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 LQ = 1995 KN5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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