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15865 (1996 HW25)
Classification: Main-belt Asteroid          SPK-ID: 2015865
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2114394658788875 4.9318e-08  
a 2.316546907352671 7.5026e-09 au
q 1.826737466578634 1.1441e-07 au
i 6.328079324514016 4.071e-06 deg
node 75.36449165837695 3.5243e-05 deg
peri 285.907312839024 3.634e-05 deg
M 182.8131716675885 1.0314e-05 deg
tp 2459634.353668582780
(2022-Feb-23.85366858)
3.7782e-05 TDB
period 1287.834557666497
3.53
6.2564e-06
1.713e-08
d
yr
n .2795390121012943 1.358e-09 deg/d
Q 2.806356348126708 9.089e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1736  
   data-arc span      8768 days (24.01 yr)  
   first obs. used      1996-04-20  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:16:19  

Additional Information
 Earth MOID = .83652 au 
 Jupiter MOID = 2.66896 au 
 T_jup = 3.543 
[ 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 14.5   n/a MPO452395  
diameter diameter 3.966 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.235   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15865 (1996 HW25)          Discovered 1996-Apr-20 by Elst, E. W. at La Silla
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 HW25 = 1997 WQ41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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