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385519 (2004 HO78)
Classification: Main-belt Asteroid          SPK-ID: 2385519
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04292908643905698 6.4534e-08  
a 3.183129407957451 4.1037e-08 au
q 3.046480570456541 2.1997e-07 au
i 13.3811682696988 6.994e-06 deg
node 21.32666487734083 2.2183e-05 deg
peri 321.0681678680459 7.1493e-05 deg
M 204.0638989003145 7.1366e-05 deg
tp 2460099.012327087882
(2023-Jun-03.51232709)
0.00041667 TDB
period 2074.339652399388
5.68
4.0114e-05
1.098e-07
d
yr
n .1735492061695817 3.3561e-09 deg/d
Q 3.319778245458361 4.2799e-08 au
  Orbit Determination Parameters
   # obs. used (total)      295  
   data-arc span      6219 days (17.03 yr)  
   first obs. used      2004-04-21  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5296  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 12:29:53  

Additional Information
 Earth MOID = 2.05119 au 
 Jupiter MOID = 1.88346 au 
 T_jup = 3.155 
[ 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 15.57   n/a E2021B25  

385519 (2004 HO78)          Discovered 2004-Apr-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-02-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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