Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
34720 (2001 PH54)
Classification: Main-belt Asteroid          SPK-ID: 2034720
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05771996099830628 4.3004e-08  
a 2.850714463550954 1.6992e-08 au
q 2.686171335897486 1.207e-07 au
i 2.33185443304638 6.0666e-06 deg
node 169.7924567716782 0.00011154 deg
peri 255.909799627216 0.000124 deg
M 145.3240969026141 5.2987e-05 deg
tp 2457890.817432117667
(2017-May-17.31743212)
0.00025811 TDB
period 1758.041026113159
4.81
1.5718e-05
4.303e-08
d
yr
n .2047733782390287 1.8308e-09 deg/d
Q 3.015257591204423 1.7972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      14772 days (40.44 yr)  
   first obs. used      1978-11-29  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59974  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:52:32  

Additional Information
 Earth MOID = 1.70048 au 
 Jupiter MOID = 2.16206 au 
 T_jup = 3.302 
[ 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 15.1   n/a MPO263636  

34720 (2001 PH54)          Discovered 2001-Aug-14 by JPL/GEODSS NEAT at Haleakala
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 PH54 = 1978 WJ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Oct-14 07:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin