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3455 Kristensen (1985 QC)
Classification: Main-belt Asteroid          SPK-ID: 2003455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06477627355533926 3.0348e-08  
a 2.243344249494019 5.9216e-09 au
q 2.098028768709998 6.8124e-08 au
i 3.556715056574562 3.3314e-06 deg
node 168.7781983753252 5.2248e-05 deg
peri 359.6289576943512 5.8978e-05 deg
M 348.6394977830759 2.86e-05 deg
tp 2459239.229094315281
(2021-Jan-24.72909432)
9.755e-05 TDB
period 1227.276196709924
3.36
4.8594e-06
1.33e-08
d
yr
n .2933325040973549 1.1614e-09 deg/d
Q 2.388659730278041 6.3052e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2760  
   data-arc span      19682 days (53.89 yr)  
   first obs. used      1967-03-05  
   last obs. used      2021-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44711  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:10:42  

Additional Information
 Earth MOID = 1.10366 au 
 Jupiter MOID = 2.5737 au 
 T_jup = 3.627 
[ 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 13.16   n/a E2021B10  
diameter diameter 5.945 km 0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.111 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Willis, S. (2004) Minor Planet Bull. 31, 82-83.]
[Pray, D.P. (2011) http://www.geocities.com/dppray_2000/]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.334   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3455 Kristensen (1985 QC)          Discovered 1985-Aug-20 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1985 QC = 1967 EC = 1978 NF4 = 1979 XH1 = 1982 SJ4 = 1982 UH5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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