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JPL Small-Body Database Browser
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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 ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1607504897545209 3.5704e-08  
a 2.216368306352744 7.0047e-09 au
q 1.860086015630142 7.9932e-08 au
i 3.494872846309055 4.5796e-06 deg
node 207.3350972063242 5.7356e-05 deg
peri 224.9643565825557 5.9138e-05 deg
M 124.364827917426 1.4416e-05 deg
tp 2458184.152083032095
(2018-Mar-06.65208303)
4.7389e-05 TDB
period 1205.20610705114
3.30
5.7135e-06
1.564e-08
d
yr
n .2987040954188629 1.4161e-09 deg/d
Q 2.572650597075345 8.1307e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1425  
   data-arc span      9992 days (27.36 yr)  
   first obs. used      1991-12-31  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4902  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:37:25  

Additional Information
 Earth MOID = .876337 au 
 Jupiter MOID = 2.6933 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 15.0   n/a MPO381501  

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 ]
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