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46257 (2001 HF44)
Classification: Main-belt Asteroid          SPK-ID: 2046257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2539179850599695 5.9103e-08  
a 3.059195082464778 2.2055e-08 au
q 2.282410431219954 1.8425e-07 au
i 22.37037005876284 7.1312e-06 deg
node 208.4421955756285 1.3598e-05 deg
peri 139.4249816155795 1.7317e-05 deg
M 25.93322359589392 1.0591e-05 deg
tp 2458459.712794269957
(2018-Dec-07.21279427)
5.7202e-05 TDB
period 1954.380791705366
5.35
2.1135e-05
5.786e-08
d
yr
n .1842015647758536 1.992e-09 deg/d
Q 3.835979733709602 2.7655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1008  
   data-arc span      13904 days (38.07 yr)  
   first obs. used      1981-10-03  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46101  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:26:21  

Additional Information
 Earth MOID = 1.31873 au 
 Jupiter MOID = 1.83077 au 
 T_jup = 3.073 
[ 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 13.4   n/a MPO452803  
diameter diameter 10.658 km 2.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.075   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

46257 (2001 HF44)          Discovered 2001-Apr-16 by LONEOS at Anderson Mesa
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HF44 = 1981 TF1 = 1981 UL13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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