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180690 (2004 HG15)
Classification: Main-belt Asteroid          SPK-ID: 2180690
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04075503731755803 4.2843e-08  
a 2.863957726411062 2.1699e-08 au
q 2.747237022395271 1.2955e-07 au
i 1.046978953184809 5.1346e-06 deg
node 328.6318646092454 0.00026741 deg
peri 111.981200610616 0.00027656 deg
M 281.2344109507467 7.1802e-05 deg
tp 2459587.831088406161
(2022-Jan-08.33108841)
0.00035484 TDB
period 1770.305961135192
4.85
2.0119e-05
5.508e-08
d
yr
n .2033546787410428 2.3111e-09 deg/d
Q 2.980678430426853 2.2583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      270  
   data-arc span      8796 days (24.08 yr)  
   first obs. used      1996-09-20  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58244  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:27:31  

Additional Information
 Earth MOID = 1.76268 au 
 Jupiter MOID = 2.11083 au 
 T_jup = 3.299 
[ 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 16.5   n/a MPO436893  

180690 (2004 HG15)          Discovered 2004-Apr-16 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2004 HG15 = 2006 SX347 = 2007 YQ46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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