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JPL Small-Body Database Browser
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10252 Heidigraf (4164 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2010252
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07045953199390086 3.8295e-08  
a 2.851586331554827 1.4462e-08 au
q 2.650664893193269 1.1158e-07 au
i 2.259174323474166 4.3781e-06 deg
node 33.29215082663062 0.00010199 deg
peri 289.4297283252189 0.00010641 deg
M 220.8718691433436 3.1005e-05 deg
tp 2459280.236613015928
(2021-Mar-06.73661302)
0.00015207 TDB
period 1758.847611759074
4.82
1.338e-05
3.663e-08
d
yr
n .2046794717138421 1.5571e-09 deg/d
Q 3.052507769916385 1.5481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1960  
   data-arc span      17580 days (48.13 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46801  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:47:54  

Additional Information
 Earth MOID = 1.6384 au 
 Jupiter MOID = 2.16524 au 
 T_jup = 3.300 
[ 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 13.2   n/a MPO435797  
diameter diameter 5.782 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.331   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10252 Heidigraf           Discovered 1971 Mar. 26 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Heidi Graf (b. 1941), head of the ESA/ESTEC public relations office from 1977 to 2006 and an enthusiastic supporter of the Space Expo at Noordwijk, was always looking for new ways to draw the attention of the public to the wonders of astronautics and space science. The name was suggested by F. P. Israel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13

[ show close-approach data ]
Alternate Designations
 4164 T-1 = 1978 VX15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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