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27720 (1989 UP3)
Classification: Main-belt Asteroid          SPK-ID: 2027720
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146520955369738 3.0669e-08  
a 2.616653040100514 1.3073e-08 au
q 2.233258536793858 8.2993e-08 au
i 12.61334409519669 4.1087e-06 deg
node 199.3867236033785 1.6982e-05 deg
peri 220.7003908328053 2.3034e-05 deg
M 334.9128864603986 1.6815e-05 deg
tp 2458708.237236623311
(2019-Aug-12.73723662)
7.2604e-05 TDB
period 1546.029005017532
4.23
1.1586e-05
3.172e-08
d
yr
n .2328546222817583 1.7451e-09 deg/d
Q 3.000047543407171 1.4989e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1207  
   data-arc span      10999 days (30.11 yr)  
   first obs. used      1989-10-26  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52169  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:40:57  

Additional Information
 Earth MOID = 1.25877 au 
 Jupiter MOID = 2.42585 au 
 T_jup = 3.358 
[ 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 14.5   n/a MPO358888  
diameter diameter 2.839 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.598 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.458   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27720 (1989 UP3)          Discovered 1989-Oct-26 by Helin, E. F. at Palomar
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 UP3 = 1999 CM103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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