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26312 Ciardi (1998 TG34)
Classification: Main-belt Asteroid          SPK-ID: 2026312
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1924202526805432 3.7936e-08  
a 2.303189801318654 8.6189e-09 au
q 1.860009437777669 8.5881e-08 au
i 6.622151563373206 5.647e-06 deg
node 183.3161753555561 3.3136e-05 deg
peri 123.322462164933 3.6931e-05 deg
M 18.20604019649764 1.8938e-05 deg
tp 2458535.933682626210
(2019-Feb-21.43368263)
6.7052e-05 TDB
period 1276.712234164782
3.50
7.1665e-06
1.962e-08
d
yr
n .281974269820881 1.5828e-09 deg/d
Q 2.74637016485964 1.0277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1255  
   data-arc span      8270 days (22.64 yr)  
   first obs. used      1997-03-10  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51346  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:52:21  

Additional Information
 Earth MOID = .85464 au 
 Jupiter MOID = 2.53324 au 
 T_jup = 3.556 
[ 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 14.4   n/a MPO449154  
diameter diameter 2.902 km 0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.451   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

26312 Ciardi           Discovered 1998 Oct. 14 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
David Ciardi (b. 1969) is an astronomer at the California Institute of Technology. His research interests include detection, validation and characterization of extrasolar planets, as well as characterization of young stellar objects.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2019-05-18Last Updated: 2019-05-29

Alternate Designations
 1998 TG34 = 1997 EK57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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