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46784 (1998 HK117)
Classification: Main-belt Asteroid          SPK-ID: 2046784
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028905064138442 3.0928e-08  
a 2.251885403782587 7.8493e-09 au
q 2.020187774201452 6.9342e-08 au
i 7.327207010448094 3.5277e-06 deg
node 79.54524538763117 3.0986e-05 deg
peri 185.6692228134038 3.7219e-05 deg
M 211.6217125209532 2.1677e-05 deg
tp 2459709.228079410899
(2022-May-09.72807941)
7.5124e-05 TDB
period 1234.291834064913
3.38
6.4535e-06
1.767e-08
d
yr
n .2916652205454573 1.525e-09 deg/d
Q 2.483583033363721 8.6569e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      8368 days (22.91 yr)  
   first obs. used      1998-04-21  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54329  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:40:19  

Additional Information
 Earth MOID = 1.00282 au 
 Jupiter MOID = 2.56968 au 
 T_jup = 3.609 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.76   n/a MPCxxxxx  
rotation period rot_per 19. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2011) Minor Planet Bull. 38, 142-149.]

46784 (1998 HK117)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HK117 = 1999 TN283 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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