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JPL Small-Body Database Browser
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3125 Hay (1982 BJ1)
Classification: Main-belt Asteroid          SPK-ID: 2003125
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2020840044385182 3.0683e-08  
a 2.599415170281102 1.0162e-08 au
q 2.074114943472464 8.0284e-08 au
i 12.77022182902706 3.6992e-06 deg
node 134.3537035458177 2.3734e-05 deg
peri 356.5365995835056 2.7854e-05 deg
M 54.86502661047421 1.6208e-05 deg
tp 2458767.205234761445
(2019-Oct-10.70523476)
6.8146e-05 TDB
period 1530.776902418306
4.19
8.9769e-06
2.458e-08
d
yr
n .2351747007883876 1.3791e-09 deg/d
Q 3.12471539708974 1.2216e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1987  
   data-arc span      24958 days (68.33 yr)  
   first obs. used      1951-09-08  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45285  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:54:32  

Additional Information
 Earth MOID = 1.08884 au 
 Jupiter MOID = 1.93036 au 
 T_jup = 3.352 
[ 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 12.7   n/a MPO458860  
diameter diameter 15.046 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 14.31 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Cooney, W.R. (2005) Minor Planet Bull. 32, 15-16.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.078   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3125 Hay (1982 BJ1)          Discovered 1982-Jan-24 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 BJ1 = 1965 AP = 1965 AP1 = 1971 QS2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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