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102936 (1999 XH44)
Classification: Main-belt Asteroid          SPK-ID: 2102936
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2211828635072 4.2565e-08  
a 2.717397783252081 1.6848e-08 au
q 2.116355960264268 1.1706e-07 au
i 10.26017705447219 5.3027e-06 deg
node 250.9741568117978 2.4037e-05 deg
peri 233.5253069797348 2.6169e-05 deg
M 208.0159698599619 1.1305e-05 deg
tp 2459891.254475947435
(2022-Nov-07.75447595)
5.4555e-05 TDB
period 1636.169346950141
4.48
1.5216e-05
4.166e-08
d
yr
n .2200261242340524 2.0463e-09 deg/d
Q 3.318439606239893 2.0574e-08 au
  Orbit Determination Parameters
   # obs. used (total)      682  
   data-arc span      7676 days (21.02 yr)  
   first obs. used      1999-11-03  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49337  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:29:26  

Additional Information
 Earth MOID = 1.15005 au 
 Jupiter MOID = 1.89156 au 
 T_jup = 3.302 
[ 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 15.10   n/a E2021B55  
diameter diameter 5.568 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102936 (1999 XH44)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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