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215781 (2004 HL73)
Classification: Main-belt Asteroid          SPK-ID: 2215781
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1001741217391142 4.5877e-08  
a 2.965137304865234 3.1525e-08 au
q 2.668107279514475 1.4605e-07 au
i 1.902223868361155 6.0313e-06 deg
node 26.57758983000572 0.000157 deg
peri 246.9127131954244 0.00016024 deg
M 15.93202180634903 3.1458e-05 deg
tp 2458917.965783771598
(2020-Mar-09.46578377)
0.00016275 TDB
period 1864.943332577178
5.11
2.9742e-05
8.143e-08
d
yr
n .1930353559335841 3.0785e-09 deg/d
Q 3.262167330215993 3.4684e-08 au
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      9570 days (26.20 yr)  
   first obs. used      1993-02-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:26:54  

Additional Information
 Earth MOID = 1.65256 au 
 Jupiter MOID = 1.82953 au 
 T_jup = 3.256 
[ 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 16.2   n/a MPO437031  

215781 (2004 HL73)          Discovered 2004-Apr-28 by Spacewatch at Kitt Peak
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ 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
1931-Jan-05 02:51 00:04 Jupiter 1.97288252233886 1.97288105292583 1.97288399175156 2.74929745054131 2.58843032400412 2426346.619048537 3.9451789538323 76.176918811253 35.6153410702007 -57.8143385778327 1389584.73791405 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 03:26:58 2020-Feb-25 03:27
1975-Jul-20 23:44 00:02 Jupiter 1.96960617373306 1.96960542049547 1.96960692697154 3.43462701562113 3.30704845107886 2442614.488670191 1.85003395984326 105.669660304421 19.1955232738492 -79.2540053891656 2489471.77572424 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 03:26:58 2020-Feb-25 03:27
2011-Jun-03 10:36 < 00:01 Jupiter 1.92283578315768 1.92283523927061 1.92283632704476 3.17969025038674 3.03799542448661 2455715.941688327 0.30707120982163 50.8593572646086 16.8582886947534 -81.57771749683 2477145.14814939 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 03:26:58 2020-Feb-25 03:27
2047-Apr-14 05:31 00:02 Jupiter 1.89228179107752 1.89228110835626 1.89228247379921 2.97715390594996 2.822801104713 2468814.730192982 1.56185702365046 87.5763439507672 14.0863880708477 -80.3052826313719 2314847.80250473 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 03:26:58 2020-Feb-25 03:27
2083-Feb-22 12:15 00:03 Jupiter 1.86378024321306 1.86377945131374 1.86378103511428 2.78883912440817 2.62081934926313 2481913.010259361 3.27649615637414 132.850970635357 11.0220426012443 -84.2067217531999 2235962.72045572 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 03:26:58 2020-Feb-25 03:27
2118-Dec-29 04:55 00:05 Jupiter 1.84478148937513 1.8447806897578 1.8447822889953 2.64230222617157 2.46241156363672 2495005.704997864 5.03230443907212 157.992899799225 9.09597338519284 -87.9352464110914 2179591.63641066 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 03:26:58 2020-Feb-25 03:27
2154-Nov-02 17:11 00:07 Jupiter 1.83770937084428 1.83770877725063 1.83770996443981 2.54134376714205 2.35299891831559 2508098.215765567 6.85696749211688 158.059765666921 10.6150777053851 86.6354597916942 2212145.62540237 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 03:26:58 2020-Feb-25 03:27
2190-Sep-04 17:17 00:09 Jupiter 1.83163983164973 1.8316393672407 1.83164029605875 2.45812545293178 2.26218961250766 2521188.220174371 8.81053300657048 143.958000517042 16.6929581402722 79.1187035890145 2327971.42904811 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 03:26:58 2020-Feb-25 03:27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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