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12317 Madicampbell (1992 HH1)
Classification: Main-belt Asteroid          SPK-ID: 2012317
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06244562754635506 1.3455e-08  
a 2.792265520814472 1.1683e-08 au
q 2.617900748091163 4.1085e-08 au
i 3.776954633685546 8.6961e-07 deg
node 213.8274583631429 1.2466e-05 deg
peri 201.0311525196079 2.7437e-05 deg
M 253.1928105025705 2.5406e-05 deg
tp 2459902.128428586318
(2022-Nov-18.62842859)
0.00012159 TDB
period 1704.25076390064
4.67
1.0696e-05
2.928e-08
d
yr
n .2112365196633636 1.3258e-09 deg/d
Q 2.966630293537782 1.2413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1993  
   data-arc span      11114 days (30.43 yr)  
   first obs. used      1991-01-18  
   last obs. used      2021-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48473  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:57:20  

Additional Information
 Earth MOID = 1.62894 au 
 Jupiter MOID = 2.26586 au 
 T_jup = 3.323 
[ 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 13.62   n/a E2021B10  
diameter diameter 13.102 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.264 h n/a LCDB (Rev. 2020-October); 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:
[Higgins, D.; Pravec, P.; Kusnirak, P.; Galad, A.; et al. (2006) Minor Planet Bull. 33, 89-91.]
geometric albedo albedo 0.049   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12317 Madicampbell           Discovered 1992 Apr. 24 by Spacewatch at Kitt Peak.
Margaret Diane Campbell (b. 1976), a Ph.D. student at the University of Western Ontario, became interested in astronomy as a young girl.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020526/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1992 HH1 = 1994 UT2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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