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JPL Small-Body Database Browser
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172176 (2002 PH41)
Classification: Main-belt Asteroid          SPK-ID: 2172176
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819779702758377 8.4032e-08  
a 2.624796362598529 1.3982e-08 au
q 2.147141248145447 2.1927e-07 au
i 11.3894732738781 6.1043e-06 deg
node 302.7468050655258 3.7916e-05 deg
peri 52.80505296205305 4.1157e-05 deg
M 61.94845444451914 1.3198e-05 deg
tp 2458733.217930658328
(2019-Sep-06.71793066)
5.7061e-05 TDB
period 1553.251744951564
4.25
1.2411e-05
3.398e-08
d
yr
n .2317718304003748 1.852e-09 deg/d
Q 3.102451477051611 1.6527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      417  
   data-arc span      7723 days (21.14 yr)  
   first obs. used      1998-11-14  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 21:45:27  

Additional Information
 Earth MOID = 1.16205 au 
 Jupiter MOID = 2.38628 au 
 T_jup = 3.352 
[ 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 16.0   n/a MPO502962  

172176 (2002 PH41)          Discovered 2002-Aug-04 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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