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19289 (1996 HY12)
Classification: Main-belt Asteroid          SPK-ID: 2019289
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260250117343323 4.0721e-08  
a 2.11990782494445 5.6308e-09 au
q 1.852746416430123 8.7295e-08 au
i 1.634153054659347 3.6332e-06 deg
node 197.094897572322 0.00012787 deg
peri 101.5764170716816 0.00012865 deg
M 224.084541922458 1.4087e-05 deg
tp 2459426.137855241802
(2021-Jul-30.63785524)
4.389e-05 TDB
period 1127.389261342362
3.09
4.4918e-06
1.23e-08
d
yr
n .3193218281779218 1.2723e-09 deg/d
Q 2.387069233458777 6.3404e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1890  
   data-arc span      8693 days (23.80 yr)  
   first obs. used      1996-04-17  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52295  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:45:06  

Additional Information
 Earth MOID = .837868 au 
 Jupiter MOID = 2.78023 au 
 T_jup = 3.720 
[ 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 15.4   n/a MPO296292  
rotation period rot_per 2.8519 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Vokrouhlicky, D.; Polishook, D.; Scheeres, D.J.; et al. (2010) Nature 466, 1085-1088. Lightcurve plots as supplemental data, http://www.Nature.com/nature]
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Oey, J.; Williams, H.; Groom, R.; Pray, D.; Benishek, V. (2017) Minor Planet Bull. 44, 193-199.]

19289 (1996 HY12)          Discovered 1996-Apr-17 by Elst, E. W. at La Silla
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 HY12 = 1997 WS52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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