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 ]  
325P/Yang-Gao
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1003026
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455051.5 (2009-Aug-08.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6209634219524268 6.5893e-07  
a 3.419528944603882 6.0139e-06 au
q 1.296126549697285 9.1115e-07 au
i 16.1583173039156 1.957e-05 deg
node 259.3039147502904 2.5505e-05 deg
peri 346.9555788531768 0.00012282 deg
M 12.19570608442939 3.275e-05 deg
tp 2454973.255773478708
(2009-May-21.75577348)
0.00010469 TDB
period 2309.658936732489
6.32
0.006093
1.668e-05
d
yr
n .155867169076183 4.1119e-07 deg/d
Q 5.54293133951048 9.7484e-06 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.592625803294245E-9 6.638E-10
A2 [EST] -2.720853345659181E-10 4.701E-12
  Orbit Determination Parameters
   # obs. used (total)      1127  
   data-arc span      23477 days (64.28 yr)  
   first obs. used      1951-05-28  
   last obs. used      2015-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .54916  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:13:29  

Additional Information
 Earth MOID = .287792 au 
 Jupiter MOID = .0884739 au 
 T_jup = 2.742 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.7   1. 28 2 parameter fit from 186 observations, autocmod 2.6q
comet total magnitude slope K1 12.   n/a 28 autocmod 2.6q

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.7   325P/2015 J4       
 2009.4   325P/2009 L2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-07 09:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin