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24819 (1994 XY4)
Classification: Mars-crossing Asteroid          SPK-ID: 2024819
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1333097568946005 9.2789e-09  
a 1.873585082104743 4.7442e-09 au
q 1.623817910288009 1.6234e-08 au
i 24.39756526035351 6.9141e-07 deg
node 85.58341852033338 2.8385e-06 deg
peri 317.3669444569732 8.919e-06 deg
M 59.89525083204938 8.3959e-06 deg
tp 2459044.653001030368
(2020-Jul-14.15300103)
2.1647e-05 TDB
period 936.717333172039
2.56
3.5579e-06
9.741e-09
d
yr
n .3843208481911179 1.4597e-09 deg/d
Q 2.123352253921476 5.3767e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1673  
   data-arc span      11413 days (31.25 yr)  
   first obs. used      1989-12-19  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:37:56  

Additional Information
 Earth MOID = .674078 au 
 Jupiter MOID = 3.2229 au 
 T_jup = 3.860 
[ 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 14.96   n/a MPCxxxxx  
rotation period rot_per 27.73 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. (2008) Minor Planet Bull. 35, 95-98.]

24819 (1994 XY4)          Discovered 1994-Dec-06 by McNaught, R. H. at Siding Spring
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 XY4 = 1953 VT3 = 1989 YB9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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