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134008 Davidhammond (2004 VP21)
Classification: Main-belt Asteroid          SPK-ID: 2134008
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08844440264201867 4.8312e-08  
a 2.733106082802361 2.1994e-08 au
q 2.491378147951639 1.2708e-07 au
i 17.92809948781193 6.2922e-06 deg
node 51.99918194386825 1.3619e-05 deg
peri 64.64928224841908 4.4805e-05 deg
M 146.789736963924 4.0048e-05 deg
tp 2458527.559988173663
(2019-Feb-13.05998817)
0.00018226 TDB
period 1650.376990027717
4.52
1.9922e-05
5.454e-08
d
yr
n .2181319796478465 2.6331e-09 deg/d
Q 2.974834017653083 2.3939e-08 au
  Orbit Determination Parameters
   # obs. used (total)      414  
   data-arc span      7162 days (19.61 yr)  
   first obs. used      2000-12-05  
   last obs. used      2020-07-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57269  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:06:31  

Additional Information
 Earth MOID = 1.55786 au 
 Jupiter MOID = 2.27485 au 
 T_jup = 3.278 
[ 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 15.71   n/a E2021B55  
diameter diameter 2.549 km 0.572 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134008 Davidhammond           Discovered 2004 Nov. 4 by the Catalina Sky Survey.
Dave Hammond (b. 1983) worked on the OSIRIS-REx mission as the Science Processing Lead at the Science Processing and Operations Center.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-08-18Last Updated: 2016-08-22

Alternate Designations
 2004 VP21 = 2002 JV91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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