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117384 Halharrison (2004 YD16)
Classification: Main-belt Asteroid          SPK-ID: 2117384
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1060718803264338 4.1698e-08  
a 2.443787612573882 1.3119e-08 au
q 2.184570465389724 9.8459e-08 au
i 1.773632236875212 4.2255e-06 deg
node 25.34143345911416 0.00012285 deg
peri 149.4805474417973 0.00012407 deg
M 13.85310331133202 1.8129e-05 deg
tp 2459146.804463285385
(2020-Oct-24.30446329)
7.0155e-05 TDB
period 1395.383603430497
3.82
1.1236e-05
3.076e-08
d
yr
n .2579935718858626 2.0775e-09 deg/d
Q 2.70300475975804 1.4511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      18261 days (50.00 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52251  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:59:43  

Additional Information
 Earth MOID = 1.18885 au 
 Jupiter MOID = 2.25745 au 
 T_jup = 3.491 
[ 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 15.92   n/a MPCxxxxx  

117384 Halharrison           Discovered 2004 Dec. 18 by Mt. Lemmon Survey at Mount Lemmon.
Hal Harrison (b. 1947) is an amateur astronomer and photographer and has always been fascinated by planetary science and astronomy. His career began with his working on IBM mainframe computers and evolved along with changes in technology. He is presently head driver at Wormhole Racing.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

Alternate Designations
 2004 YD16 = 2003 SK124 = 2034 T-1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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