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JPL Small-Body Database Browser
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3764 Holmesacourt (1980 TL15)
Classification: Main-belt Asteroid          SPK-ID: 2003764
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08998548414642417 2.8e-08  
a 2.249541696607434 6.685e-09 au
q 2.047115597930646 6.3787e-08 au
i 4.87705842263779 3.1973e-06 deg
node 146.130014548936 4.4584e-05 deg
peri 325.4666102425062 4.9802e-05 deg
M 80.21669944533552 2.2306e-05 deg
tp 2458325.899207620764
(2018-Jul-26.39920762)
7.6117e-05 TDB
period 1232.365404461594
3.37
5.4933e-06
1.504e-08
d
yr
n .2921211506722552 1.3021e-09 deg/d
Q 2.451967795284223 7.2865e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2388  
   data-arc span      22358 days (61.21 yr)  
   first obs. used      1958-02-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45194  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 23:52:31  

Additional Information
 Earth MOID = 1.06594 au 
 Jupiter MOID = 2.6152 au 
 T_jup = 3.618 
[ 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 13.3   n/a MPO384786  
diameter diameter 5.738 km 0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.275879 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.309   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3764 Holmesacourt (1980 TL15)          Discovered 1980-Oct-10 by at Perth
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1935-Nov-30 20:58 < 00:01 Iris 0.0205988845260931 0.0205947069237147 0.020603063134269 4.91400424784716 4.91400419105429 2428137.373582541 0.327651836168178 311.05157826395 39.2924741230249 -48.4834617171359 59064.990158456 T 26 CATAB v2.0e-lin.ifort 2019-May-29 23:52:46 2019-May-29 23:53
2180-Jul-12 07:52 < 00:01 Iris 0.011424156007657 0.0114077935640413 0.011440523144465 5.26567398524137 5.26567388967723 2517481.827748818 0.292155359276523 893.830152754627 32.0408996490682 24.1376751044165 21871.7286662696 T 26 CATAB v2.0e-lin.ifort 2019-May-29 23:52:46 2019-May-29 23:53

Alternate Designations
 1980 TL15 = 1958 DA1 = 1958 DE = 1975 EJ3 = 1980 XC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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