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186942 (2004 QQ12)
Classification: Main-belt Asteroid          SPK-ID: 2186942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0883218734040761 5.6042e-08  
a 3.060100202544696 2.8908e-08 au
q 2.789826419851756 1.852e-07 au
i 10.72596089247069 4.5918e-06 deg
node 55.89062698827926 2.6941e-05 deg
peri 277.9692712760379 4.1132e-05 deg
M 20.25401512800962 2.7707e-05 deg
tp 2459090.495480704652
(2020-Aug-28.99548070)
0.000151 TDB
period 1955.2482160221
5.35
2.7706e-05
7.585e-08
d
yr
n .1841198457822456 2.609e-09 deg/d
Q 3.330373985237637 3.1461e-08 au
  Orbit Determination Parameters
   # obs. used (total)      570  
   data-arc span      7763 days (21.25 yr)  
   first obs. used      1999-10-08  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55699  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:20  

Additional Information
 Earth MOID = 1.80502 au 
 Jupiter MOID = 2.0059 au 
 T_jup = 3.201 
[ 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 15.00   n/a E2021B55  
diameter diameter 6.281 km 1.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.054   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

186942 (2004 QQ12)          Discovered 2004-Aug-21 by Siding Spring Survey at Siding Spring
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2004 QQ12 = 2002 GV33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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