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 ]  
154771 (2004 PH25)
Classification: Main-belt Asteroid          SPK-ID: 2154771
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .167938225182194 4.912e-08  
a 2.398182554332947 1.3029e-08 au
q 1.995436032495372 1.1614e-07 au
i 1.267027419368489 5.114e-06 deg
node 278.5056069639906 0.00025748 deg
peri 2.283094769140586 0.00025807 deg
M 121.0823275810077 1.6563e-05 deg
tp 2458544.252974585705
(2019-Mar-01.75297459)
6.2009e-05 TDB
period 1356.506208878904
3.71
1.1054e-05
3.026e-08
d
yr
n .2653876536971585 2.1627e-09 deg/d
Q 2.800929076170523 1.5217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      8085 days (22.14 yr)  
   first obs. used      1997-10-06  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54363  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 12:04:55  

Additional Information
 Earth MOID = .978967 au 
 Jupiter MOID = 2.33168 au 
 T_jup = 3.508 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO436783  

154771 (2004 PH25)          Discovered 2004-Aug-08 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-25 23:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin