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91127 (1998 HY122)
Classification: Main-belt Asteroid          SPK-ID: 2091127
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06785435866073061 4.3099e-08  
a 2.743061234344536 1.3239e-08 au
q 2.556932573520975 1.2183e-07 au
i 11.0193106552152 4.5865e-06 deg
node 184.3747534962712 1.7716e-05 deg
peri 340.7030199181784 3.1752e-05 deg
M 1.250318628155903 2.5011e-05 deg
tp 2458994.736717849060
(2020-May-25.23671785)
0.00011529 TDB
period 1659.402273641738
4.54
1.2013e-05
3.289e-08
d
yr
n .2169455868045431 1.5705e-09 deg/d
Q 2.929189895168097 1.4137e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1152  
   data-arc span      8039 days (22.01 yr)  
   first obs. used      1998-04-23  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56561  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:37:58  

Additional Information
 Earth MOID = 1.56519 au 
 Jupiter MOID = 2.04164 au 
 T_jup = 3.319 
[ 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 14.6   n/a MPO422267  
diameter diameter 4.360 km 0.324 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.147   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91127 (1998 HY122)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 HY122 = 2000 WO174 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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