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 ]  
30857 Parsec (1991 YY)
Classification: Main-belt Asteroid          SPK-ID: 2030857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1600079991926475 2.7046e-08  
a 2.216362293865141 6.4719e-09 au
q 1.861726597737753 6.222e-08 au
i 3.49298865852407 3.3419e-06 deg
node 207.231717061146 5.2278e-05 deg
peri 225.4741241244047 5.3859e-05 deg
M 303.0152623198113 1.4493e-05 deg
tp 2459391.272428885141
(2021-Jun-25.77242889)
4.9035e-05 TDB
period 1205.201202892041
3.30
5.2789e-06
1.445e-08
d
yr
n .2987053108942572 1.3084e-09 deg/d
Q 2.570997989992529 7.5074e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1883  
   data-arc span      10636 days (29.12 yr)  
   first obs. used      1991-12-31  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47692  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:41:16  

Additional Information
 Earth MOID = .877772 au 
 Jupiter MOID = 2.69241 au 
 T_jup = 3.634 
[ 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 15.04   n/a E2021B10  

30857 Parsec           Discovered 1991 Dec. 31 by E. W. Elst at Haute Provence.
To the nearest integer, the number of this minor planet represents one parsec in units of a trillion meters. The name was suggested by A. Nakamura.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080321/MPCPages.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 1991 YY = 1996 HK12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-14 08:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin