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4469 Utting (1978 PS4)
Classification: Main-belt Asteroid          SPK-ID: 2004469
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1876220850194475 1.8222e-08  
a 2.574739079907564 8.4497e-09 au
q 2.091661165354253 4.7055e-08 au
i 11.85256975018712 6.9932e-07 deg
node 325.0731806394992 2.1981e-06 deg
peri 20.36392826799696 6.5301e-06 deg
M 66.31100009400568 4.6927e-06 deg
tp 2458922.540615487168
(2020-Mar-14.04061549)
1.9144e-05 TDB
period 1509.031356528509
4.13
7.4285e-06
2.034e-08
d
yr
n .2385636311946304 1.1744e-09 deg/d
Q 3.057816994460875 1.0035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1751  
   data-arc span      16979 days (46.49 yr)  
   first obs. used      1974-09-11  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:23:07  

Additional Information
 Earth MOID = 1.08561 au 
 Jupiter MOID = 2.35664 au 
 T_jup = 3.373 
[ 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 13.76   n/a MPCxxxxx  
diameter diameter 4.845 km 0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.40 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.227   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4469 Utting (1978 PS4)          Discovered 1978-Aug-01 by Perth Observatory at Bickley
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 PS4 = 1974 RD = 1981 EP5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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