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85549 (1997 YH)
Classification: Main-belt Asteroid          SPK-ID: 2085549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140698544710893 4.619e-08  
a 2.463739699282748 1.0819e-08 au
q 2.18270127033092 1.1194e-07 au
i 7.162818836730214 4.5188e-06 deg
node 254.1419025196846 3.282e-05 deg
peri 148.550119139887 3.8804e-05 deg
M 63.81285045169867 1.7842e-05 deg
tp 2459146.121921054456
(2020-Oct-23.62192105)
7.0504e-05 TDB
period 1412.50716403308
3.87
9.304e-06
2.547e-08
d
yr
n .2548659639871172 1.6788e-09 deg/d
Q 2.744778128234577 1.2053e-08 au
  Orbit Determination Parameters
   # obs. used (total)      952  
   data-arc span      8507 days (23.29 yr)  
   first obs. used      1997-12-18  
   last obs. used      2021-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52829  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:26:31  

Additional Information
 Earth MOID = 1.19505 au 
 Jupiter MOID = 2.6158 au 
 T_jup = 3.469 
[ 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 15.52   n/a E2021B10  
diameter diameter 2.504 km 0.837 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.195   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85549 (1997 YH)          Discovered 1997-Dec-18 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 YH = 2000 OZ28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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