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118158 (5161 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2118158
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .138333964930847 7.6505e-08  
a 2.975409259757433 2.2387e-08 au
q 2.563809099563231 2.2739e-07 au
i 10.83077566891542 5.5156e-06 deg
node 83.20828069927043 3.2967e-05 deg
peri 269.0782057565644 3.8072e-05 deg
M 170.5058432868749 2.0845e-05 deg
tp 2458312.617986072380
(2018-Jul-13.11798607)
0.00010677 TDB
period 1874.642644804584
5.13
2.1157e-05
5.792e-08
d
yr
n .1920366001476121 2.1673e-09 deg/d
Q 3.387009419951636 2.5484e-08 au
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      15809 days (43.28 yr)  
   first obs. used      1977-10-11  
   last obs. used      2021-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53787  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:19:00  

Additional Information
 Earth MOID = 1.58569 au 
 Jupiter MOID = 2.12273 au 
 T_jup = 3.220 
[ 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 14.85   n/a E2021B55  
diameter diameter 4.255 km 0.830 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 23.6051 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.141   0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118158 (5161 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 5161 T-3 = 2003 UG265 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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