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85623 (1998 HL123)
Classification: Main-belt Asteroid          SPK-ID: 2085623
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1952032558213956 4.0517e-08  
a 3.198757648339777 2.364e-08 au
q 2.574349740800261 1.3816e-07 au
i 19.89577277515837 4.4401e-06 deg
node 65.68303189412761 1.269e-05 deg
peri 101.0743535569282 1.9723e-05 deg
M 350.9054243289231 1.2074e-05 deg
tp 2459053.289843305983
(2020-Jul-22.78984331)		 7.01e-05 TDB
period 2089.634995351422
5.72		 2.3165e-05
6.342e-08		 d
yr
n .1722788911943243 1.9098e-09 deg/d
Q 3.823165555879292 2.8255e-08 au
   Orbit Determination Parameters
   # obs. used (total)      895  
   data-arc span      8047 days (22.03 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49299  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:38:31  

Additional Information
 Earth MOID = 1.66677 au 
 Jupiter MOID = 1.57168 au 
 T_jup = 3.073 
[ 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 14.0   n/a MPO422237  
diameter diameter 4.910 km 1.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.184   0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85623 (1998 HL123)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1902-Aug-28 05:19 00:05 Jupiter 1.93077484723109 1.93077394515188 1.93077574930843 2.57739294337711 2.40115869857824 2415989.721334371 4.75280931156393 187.972854197951 105.150944149893 34.8683073666172 266227.833722686 T 22 CATAB v2.0f-lin.ifort 2020-May-20 15:38:48 2020-May-20 15:38
2036-Apr-04 06:44 < 00:01 Jupiter 1.73390145842582 1.73390064269596 1.73390227415953 5.39707721528337 5.30579202626174 2464787.780806757 0.631706204468658 154.442679094823 18.1394303915295 -76.7549138000918 3289960.50783515 T 22 CATAB v2.0f-lin.ifort 2020-May-20 15:38:48 2020-May-20 15:38
2047-Jul-28 14:22 < 00:01 Jupiter 1.55622209680681 1.55622142724682 1.55622276636902 4.99867442290984 4.88857683547891 2468920.098648255 0.951923601602764 157.7268519564 25.0116310839315 -82.7082331662123 2907173.22747479 T 22 CATAB v2.0f-lin.ifort 2020-May-20 15:38:48 2020-May-20 15:38
2058-Dec-19 05:57 00:01 Jupiter 1.56714098056154 1.56714010102851 1.56714186009653 4.65752522670107 4.53999594360765 2473081.748047888 1.47283971464245 172.86018593825 36.732880292721 81.7074129924134 2574379.63008535 T 22 CATAB v2.0f-lin.ifort 2020-May-20 15:38:48 2020-May-20 15:38
2070-Apr-27 08:29 00:03 Jupiter 1.72519484356137 1.72519269603507 1.7251969910912 4.10807724974937 3.98677244302316 2477228.853423822 2.72505748125974 180.102645085505 61.2950216649792 54.2219576277896 1722272.05585874 T 22 CATAB v2.0f-lin.ifort 2020-May-20 15:38:48 2020-May-20 15:38
2081-Jan-04 01:14 00:11 Jupiter 1.98179644300124 1.98179442971334 1.98179845651577 0.787845865146837 n/a 2481133.551726325 10.5637552504427 1145.48739933696 37.8727204007696 85.3414329316435 7800402.63324555 F 22 CATAB v2.0f-lin.ifort 2020-May-20 15:38:48 2020-May-20 15:38

Alternate Designations
 1998 HL123 = 2001 UX52 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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