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JPL Small-Body Database Browser
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39623 (1994 PJ7)
Classification: Main-belt Asteroid          SPK-ID: 2039623
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 .06881759884416937 4.3679e-08  
a 2.792789482074104 1.7039e-08 au
q 2.600596415840513 1.2109e-07 au
i 3.26373636673102 5.0494e-06 deg
node 151.8479160587221 7.7191e-05 deg
peri 168.2789334103751 8.5874e-05 deg
M 199.0427961698051 4.0339e-05 deg
tp 2459762.690699809565
(2022-Jul-02.19069981)
0.00019351 TDB
period 1704.730483644058
4.67
1.5601e-05
4.271e-08
d
yr
n .2111770766429063 1.9327e-09 deg/d
Q 2.984982548307695 1.8212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1038  
   data-arc span      9310 days (25.49 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54062  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:31:50  

Additional Information
 Earth MOID = 1.58773 au 
 Jupiter MOID = 2.2193 au 
 T_jup = 3.323 
[ 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 14.7   n/a MPO324666  
diameter diameter 5.770 km 0.279 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39623 (1994 PJ7)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 PJ7 = 1999 TK24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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