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4819 Gifford (1985 KC)
Classification: Main-belt Asteroid          SPK-ID: 2004819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03033765723519766 3.6253e-08  
a 2.203184886527229 7.1135e-09 au
q 2.136345418613998 8.0343e-08 au
i 5.802060060275857 4.3986e-06 deg
node 344.0065728057357 3.2714e-05 deg
peri 303.4525684358788 7.5338e-05 deg
M 207.8436578338354 6.8655e-05 deg
tp 2459505.350046969210
(2021-Oct-17.85004697)
0.00022784 TDB
period 1194.468888522815
3.27
5.7849e-06
1.584e-08
d
yr
n .3013891809649455 1.4597e-09 deg/d
Q 2.270024354440459 7.3293e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1966  
   data-arc span      24332 days (66.62 yr)  
   first obs. used      1953-10-01  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47828  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:48:26  

Additional Information
 Earth MOID = 1.1265 au 
 Jupiter MOID = 2.76507 au 
 T_jup = 3.656 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO448962  
diameter diameter 3.836 km 0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.101   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

4819 Gifford           Discovered 1985 May 24 by A. C. Gilmore and P. M. Kilmartin at Lake Tekapo.
Algernon Charles Gifford (1861-1948) published important papers on the impact origin of lunar craters. He established an observatory at Wellington College, which is now reopening as Gifford Observatory. Mt. Gifford and the Gifford Crack, in Fiordland, are named for his legendary exploits in tramping and photography.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1985 KC = 1979 QT3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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