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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0633570857207813 4.4085e-08  
a 2.789266758003291 1.2433e-08 au
q 2.612546944918351 1.2305e-07 au
i 3.778882051182043 5.0216e-06 deg
node 213.8898760010316 5.2533e-05 deg
peri 201.6371014940025 6.1589e-05 deg
M 168.7902621137851 3.3548e-05 deg
tp 2458202.728733423100
(2018-Mar-25.22873342)
0.00015666 TDB
period 1701.506072513105
4.66
1.1376e-05
3.115e-08
d
yr
n .2115772642928533 1.4146e-09 deg/d
Q 2.965986571088231 1.322e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1858  
   data-arc span      10770 days (29.49 yr)  
   first obs. used      1991-01-18  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49328  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:53:47  

Additional Information
 Earth MOID = 1.62425 au 
 Jupiter MOID = 2.26805 au 
 T_jup = 3.324 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO473933  
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. 2019-August); 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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