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
JPL Small-Body Database Browser
Search: [ help ]  
78297 (2002 PH54)
Classification: Main-belt Asteroid          SPK-ID: 2078297
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .178319400261442 6.3505e-08  
a 2.702426323585777 1.2752e-08 au
q 2.220531282313228 1.7125e-07 au
i 12.29130249613925 6.8228e-06 deg
node 330.2322563057062 1.729e-05 deg
peri 35.69474044506495 2.3731e-05 deg
M 327.8746301790158 1.2383e-05 deg
tp 2459145.302098527429
(2020-Oct-22.80209853)
5.5561e-05 TDB
period 1622.666315138394
4.44
1.1486e-05
3.145e-08
d
yr
n .2218570735347374 1.5704e-09 deg/d
Q 3.184321364858326 1.5026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      679  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1998-10-02  
   last obs. used      2020-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:22  

Additional Information
 Earth MOID = 1.22908 au 
 Jupiter MOID = 2.31005 au 
 T_jup = 3.311 
[ 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 15.5   n/a MPO436330  

78297 (2002 PH54)          Discovered 2002-Aug-11 by Needville at Needville
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-28 20:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin