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154357 (2002 XO44)
Classification: Main-belt Asteroid          SPK-ID: 2154357
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2168045875682089 7.9616e-08  
a 2.54057940776306 1.4416e-08 au
q 1.989770137078705 2.0716e-07 au
i 11.8930745034101 5.1093e-06 deg
node 301.9195862839814 2.6048e-05 deg
peri 44.49074271809771 2.7378e-05 deg
M 156.5888483586857 8.1634e-06 deg
tp 2458357.137243238661
(2018-Aug-26.63724324)
3.2884e-05 TDB
period 1479.100171319672
4.05
1.2589e-05
3.447e-08
d
yr
n .2433912232454164 2.0716e-09 deg/d
Q 3.091388678447415 1.7541e-08 au
  Orbit Determination Parameters
   # obs. used (total)      816  
   data-arc span      7723 days (21.14 yr)  
   first obs. used      1998-11-14  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52148  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 20:03:42  

Additional Information
 Earth MOID = .999583 au 
 Jupiter MOID = 2.36529 au 
 T_jup = 3.383 
[ 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 15.5   n/a MPO469636  
diameter diameter 1.888 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.412   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154357 (2002 XO44)          Discovered 2002-Dec-07 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2002 XO44 = 1998 VL53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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