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312580 (2009 HZ78)
Classification: Main-belt Asteroid          SPK-ID: 2312580
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1503073743903839 5.8433e-08  
a 2.644501098503529 3.1132e-08 au
q 2.247013081814978 1.5421e-07 au
i 7.594366514697573 7.8621e-06 deg
node 202.4311663359091 4.0753e-05 deg
peri 41.42228599725797 4.8227e-05 deg
M 194.4791867765895 3.1495e-05 deg
tp 2459722.711110185354
(2022-May-23.21111019)
0.00014595 TDB
period 1570.775267493399
4.30
2.7738e-05
7.594e-08
d
yr
n .2291861906983538 4.0471e-09 deg/d
Q 3.04198911519208 3.5811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      5749 days (15.74 yr)  
   first obs. used      2004-02-11  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54509  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:49  

Additional Information
 Earth MOID = 1.24111 au 
 Jupiter MOID = 1.97929 au 
 T_jup = 3.365 
[ 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 16.4   n/a MPO455304  

312580 (2009 HZ78)          Discovered 2009-Apr-26 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ 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
2071-Sep-22 07:56 00:03 Jupiter 1.98021013070719 1.98020957804548 1.98021068337015 2.92393425038522 2.77378874317715 2477741.830381039 2.70338986043762 189.373066338867 23.1843883032666 85.2232315821173 1718871.91061128 T 13 CATAB v2.0f-lin.ifort 2019-Dec-04 21:33:02 2019-Dec-04 21:33
2118-Dec-23 20:23 00:05 Jupiter 1.97455532482111 1.97455480870253 1.97455584093957 3.00174347854648 2.85526293445243 2495000.349436956 4.98163649887128 357.084582287024 21.7348421192832 87.8545376637508 1655419.98860866 T 13 CATAB v2.0f-lin.ifort 2019-Dec-04 21:33:02 2019-Dec-04 21:33
2166-Mar-26 09:19 00:07 Jupiter 1.98376936308151 1.9837684427308 1.98377028346899 3.10482849893431 2.96412000340409 2512259.888343594 7.27177404218688 540.376116631901 21.0179821658828 -88.4727281221522 1665331.56057614 T 13 CATAB v2.0f-lin.ifort 2019-Dec-04 21:33:02 2019-Dec-04 21:33
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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