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362208 (2009 HQ44)
Classification: Main-belt Asteroid          SPK-ID: 2362208
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09288076766510361 6.5269e-08  
a 2.549283356391772 2.6069e-08 au
q 2.312503961254233 1.6892e-07 au
i 11.77897122644267 6.9287e-06 deg
node 152.4149887251768 3.0775e-05 deg
peri 282.0734731014244 4.8765e-05 deg
M 96.09158111410591 3.6026e-05 deg
tp 2458803.666404977824
(2019-Nov-16.16640498)
0.00015101 TDB
period 1486.707706873314
4.07
2.2804e-05
6.243e-08
d
yr
n .2421457818074502 3.7142e-09 deg/d
Q 2.786062751529311 2.849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      6738 days (18.45 yr)  
   first obs. used      2002-08-29  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51001  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 09:38:38  

Additional Information
 Earth MOID = 1.3611 au 
 Jupiter MOID = 2.42391 au 
 T_jup = 3.406 
[ 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 16.89   n/a E2021B25  
diameter diameter 2.774 km 0.439 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

362208 (2009 HQ44)          Discovered 2009-Apr-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-04-29

Alternate Designations
 2009 HQ44 = 2006 QK154 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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