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JPL Small-Body Database Browser
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9641 Demaziere (1994 PB30)
Classification: Main-belt Asteroid          SPK-ID: 2009641
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1327261320889424 3.8479e-08  
a 2.452848023614405 9.9667e-09 au
q 2.127290992838059 9.4073e-08 au
i 4.757778087869996 4.1944e-06 deg
node 222.0189190657545 5.6275e-05 deg
peri 60.75983924763562 5.8731e-05 deg
M 194.3916084784662 1.8184e-05 deg
tp 2459245.982133759137
(2021-Jan-31.48213376)
7.1945e-05 TDB
period 1403.150927427938
3.84
8.5521e-06
2.341e-08
d
yr
n .2565654149977309 1.5638e-09 deg/d
Q 2.778405054390752 1.1289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1309  
   data-arc span      9931 days (27.19 yr)  
   first obs. used      1991-12-28  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5438  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:02:23  

Additional Information
 Earth MOID = 1.11526 au 
 Jupiter MOID = 2.34802 au 
 T_jup = 3.478 
[ 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 14.5   n/a MPO319206  
rotation period rot_per 9.912 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

9641 Demaziere (1994 PB30)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 19981110/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 PB30 = 1997 GY36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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