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135138 (2001 QY187)
Classification: Main-belt Asteroid          SPK-ID: 2135138
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1460649680367182 4.0359e-08  
a 3.107609408973709 2.2664e-08 au
q 2.653696539981359 1.3332e-07 au
i 16.23776254596094 4.4142e-06 deg
node 230.9414424041552 1.6608e-05 deg
peri 17.95349341793987 2.3638e-05 deg
M 277.5738692923507 1.7964e-05 deg
tp 2459658.642394218973
(2022-Mar-20.14239422)
0.00010178 TDB
period 2000.958440034168
5.48
2.189e-05
5.993e-08
d
yr
n .1799137817144531 1.9682e-09 deg/d
Q 3.561522277966058 2.5974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      8929 days (24.45 yr)  
   first obs. used      1996-11-13  
   last obs. used      2021-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:20:45  

Additional Information
 Earth MOID = 1.64374 au 
 Jupiter MOID = 1.46884 au 
 T_jup = 3.142 
[ 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 14.61   n/a MPCxxxxx  
diameter diameter 4.017 km 0.826 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.190   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135138 (2001 QY187)          Discovered 2001-Aug-21 by NEAT at Haleakala
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 2001 QY187 = 2000 KB81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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