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85661 (1998 QY36)
Classification: Main-belt Asteroid          SPK-ID: 2085661
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1687902123258363 4.1881e-08  
a 2.220375565964657 7.3961e-09 au
q 1.845597902742383 9.2804e-08 au
i 4.743873320303718 4.7397e-06 deg
node 213.194262520694 4.1123e-05 deg
peri 132.5984257892307 4.2862e-05 deg
M 201.7363816610528 1.2635e-05 deg
tp 2459531.771692272146
(2021-Nov-13.27169227)
4.2878e-05 TDB
period 1208.476156588074
3.31
6.0382e-06
1.653e-08
d
yr
n .2978958236266726 1.4884e-09 deg/d
Q 2.59515322918693 8.6445e-09 au
  Orbit Determination Parameters
   # obs. used (total)      922  
   data-arc span      7837 days (21.46 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:36:32  

Additional Information
 Earth MOID = .84278 au 
 Jupiter MOID = 2.82689 au 
 T_jup = 3.627 
[ 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 15.6   n/a MPO453287  
diameter diameter 2.382 km 0.385 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.179   0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85661 (1998 QY36)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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