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10502 Armaghobs (1987 QF6)
Classification: Mars-crossing Asteroid          SPK-ID: 2010502
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3189338638332472 3.0441e-08  
a 2.308194923564594 6.8929e-09 au
q 1.572033398111851 6.9558e-08 au
i 21.92731796026007 4.8965e-06 deg
node 170.1923220370335 9.942e-06 deg
peri 263.2691088866616 1.3489e-05 deg
M 66.92743464227959 7.8408e-06 deg
tp 2458762.372897783579
(2019-Oct-05.87289778)
2.7827e-05 TDB
period 1280.876179643029
3.51
5.7376e-06
1.571e-08
d
yr
n .2810576117516133 1.259e-09 deg/d
Q 3.044356449017337 9.0913e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1318  
   data-arc span      14507 days (39.72 yr)  
   first obs. used      1980-08-10  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47383  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:22:02  

Additional Information
 Earth MOID = .73981 au 
 Jupiter MOID = 2.68056 au 
 T_jup = 3.425 
[ 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 14.9   n/a MPO412258  
diameter diameter 2.615 km 0.471 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 24.978 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:
[Hill, K. (2014) Minor Planet Bull. 41, 2-3.]
geometric albedo albedo 0.258   0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

10502 Armaghobs           Discovered 1987 Aug. 22 by E. F. Helin at Palomar.
Armagh Observatory, founded in 1790 by Archbishop Richard Robinson, is a modern astronomical research institute with a rich heritage that includes T. R. Robinson's cup-anemometer, Dreyer's NGC Catalogue, Lindsay's Armagh-Dunsink-Harvard telescope and the work of the Estonian astronomer E. J. Opik.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1987 QF6 = 1980 PJ2 = 1994 RJ29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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