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JPL Small-Body Database Browser
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17400 (1985 PL1)
Classification: Main-belt Asteroid          SPK-ID: 2017400
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05876980038798579 4.2641e-08  
a 2.884704440630638 1.6401e-08 au
q 2.71517093647644 1.2568e-07 au
i 11.89888405900849 5.6308e-06 deg
node 192.0809199559191 1.7314e-05 deg
peri 141.2842685353026 4.4412e-05 deg
M 310.2069707644234 4.1361e-05 deg
tp 2458848.023512208720
(2019-Dec-30.52351221)		 0.00020615 TDB
period 1789.577090671808
4.90		 1.5262e-05
4.179e-08		 d
yr
n .2011648460837503 1.7156e-09 deg/d
Q 3.054237944784837 1.7365e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1144  
   data-arc span      12437 days (34.05 yr)  
   first obs. used      1985-08-13  
   last obs. used      2019-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4957  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:24:11  

Additional Information
 Earth MOID = 1.71667 au 
 Jupiter MOID = 2.18557 au 
 T_jup = 3.258 
[ 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 14.3   n/a MPO347660  
diameter diameter 7.685 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17400 (1985 PL1)          Discovered 1985-Aug-13 by Oak Ridge Observatory at Harvard
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1985 PL1 = 1985 QH2 = 1985 QY3 = 1988 CK7 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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