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P/2006 HR30 (Siding Spring)
Classification: Halley-type Comet* [NEO]          SPK-ID: 1002409
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454046.5 (2006-Nov-07.0) TDB
Reference: JPL 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8431185484711656 4.494e-07  
a 7.817544282682654 2.2746e-05 au
q 1.226427694458195 1.0878e-07 au
i 31.88449910940493 5.9754e-06 deg
node 309.952159808177 7.3872e-06 deg
peri 117.4138763909375 1.0247e-05 deg
M 357.462130353871 1.1069e-05 deg
tp 2454102.782160787813
(2007-Jan-02.28216079)
1.3903e-05 TDB
period 7983.695267610604
21.86
0.034844
9.54e-05
d
yr
n .04509190142320429 1.968e-07 deg/d
Q 14.40866087090711 4.1924e-05 au
  Orbit Determination Parameters
   # obs. used (total)      3059  
   data-arc span      1034 days (2.83 yr)  
   first obs. used      2005-07-06  
   last obs. used      2008-05-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .42835  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:30:56  

Additional Information
 Earth MOID = .452907 au 
 Jupiter MOID = .574368 au 
 T_jup = 1.785 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.9   0.7 89 2 parameter fit from 580 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 89 autocmod 2.9c
rotation period rot_per 70.7 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Galad, A. (2008) Minor Planet Bull. 35, 17-21.]

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2007.0   P/2006 HR30       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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