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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07029192939251125 1.8614e-08  
a 2.853453992704996 1.3023e-08 au
q 2.652879206124998 5.7355e-08 au
i 2.258254323127019 1.069e-06 deg
node 33.18217694406823 1.6542e-05 deg
peri 287.8632181528345 2.7907e-05 deg
M 25.23626105913396 1.7296e-05 deg
tp 2459273.082356621242
(2021-Feb-27.58235662)
8.4715e-05 TDB
period 1760.575844109522
4.82
1.2053e-05
3.3e-08
d
yr
n .2044785524034516 1.3999e-09 deg/d
Q 3.054028779284995 1.3939e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2183  
   data-arc span      18369 days (50.29 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47069  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:49:52  

Additional Information
 Earth MOID = 1.64053 au 
 Jupiter MOID = 2.15609 au 
 T_jup = 3.300 
[ 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 13.28   n/a MPCxxxxx  
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

Alternate Designations
 4164 T-1 = 1978 VX15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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