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120641 (1996 PH4)
Classification: Main-belt Asteroid          SPK-ID: 2120641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2530693313537618 8.6756e-08  
a 2.571380404853546 1.581e-08 au
q 1.920642885141094 2.284e-07 au
i 2.929850079737841 5.1436e-06 deg
node 310.3124300258136 0.00011933 deg
peri 85.86229809459867 0.00011983 deg
M 234.3947143669624 9.5644e-06 deg
tp 2459525.976546048515
(2021-Nov-07.47654605)
4.0423e-05 TDB
period 1506.079585935103
4.12
1.389e-05
3.803e-08
d
yr
n .2390311928811393 2.2044e-09 deg/d
Q 3.222117924565998 1.981e-08 au
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      8772 days (24.02 yr)  
   first obs. used      1996-08-10  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49701  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:55:46  

Additional Information
 Earth MOID = .930359 au 
 Jupiter MOID = 2.2285 au 
 T_jup = 3.382 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457055.5 (2015-Feb-02.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2536061990652101 8.6641e-08  
q 1.918592712993637 2.2784e-07 au
tp 2456516.878809319311
(2013-Aug-12.37880932)
4.5973e-05 TDB
node 310.3515479833829 0.00011937 deg
peri 86.1129368153331 0.00011986 deg
i 2.929938999899418 5.1427e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      8772 days (24.02 yr)  
   first obs. used      1996-08-10  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49701  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:55:46  

Additional Information
 Jupiter MOID = 2.2285 au 
 T_jup = 3.382 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.506609034292916E-15 -1.971771784842635E-14 1.841768824573357E-12 -1.306462603851669E-13 1.606067145736456E-13 -8.73731770478276E-15
q -1.971771784842635E-14 5.191331543559564E-14 -5.018601040420031E-12 3.464445120453181E-13 -4.630132548484477E-13 2.314111052695949E-14
tp 1.841768824573357E-12 -5.018601040420031E-12 2.113490918544568E-9 -4.289410171608318E-11 5.178759577754223E-10 -3.966505982129769E-12
node -1.306462603851669E-13 3.464445120453181E-13 -4.289410171608318E-11 1.424971996241359E-8 -1.423425139700393E-8 -1.917109745710053E-10
peri 1.606067145736456E-13 -4.630132548484477E-13 5.178759577754223E-10 -1.423425139700393E-8 1.436715567668152E-8 1.909123508875645E-10
i -8.73731770478276E-15 2.314111052695949E-14 -3.966505982129769E-12 -1.917109745710053E-10 1.909123508875645E-10 2.644779195042365E-11

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 15.9   n/a MPO436582  

120641 (1996 PH4)          Discovered 1996-Aug-10 by NEAT at Haleakala
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1996 PH4 = 2002 AN164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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