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214078 (2004 HH12)
Classification: Main-belt Asteroid          SPK-ID: 2214078
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09339990022742301 4.5716e-08  
a 2.90333676088587 2.7946e-08 au
q 2.63216539709252 1.3261e-07 au
i 11.74262646338176 4.8699e-06 deg
node 158.355600969692 2.7985e-05 deg
peri 353.0128767168491 4.1279e-05 deg
M 144.6180384901033 3.1042e-05 deg
tp 2458274.620531874554
(2018-Jun-05.12053187)
0.00015524 TDB
period 1806.943388621907
4.95
2.6089e-05
7.143e-08
d
yr
n .1992314769056265 2.8766e-09 deg/d
Q 3.17450812467922 3.0557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      7700 days (21.08 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60354  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:02:23  

Additional Information
 Earth MOID = 1.64294 au 
 Jupiter MOID = 1.81545 au 
 T_jup = 3.248 
[ 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 15.2   n/a MPO437026  

214078 (2004 HH12)          Discovered 2004-Apr-19 by Goodricke-Pigott at Goodricke-Pigott
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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