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39856 (1998 DV4)
Classification: Main-belt Asteroid          SPK-ID: 2039856
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271839080323883 3.4825e-08  
a 2.289158656762725 8.3415e-09 au
q 1.998014512689469 8.1232e-08 au
i .5826757727537144 4.8411e-06 deg
node 142.3489893241655 0.00043568 deg
peri 283.5021537226412 0.00043623 deg
M 224.5167525060138 2.2243e-05 deg
tp 2459476.596912136479
(2021-Sep-19.09691214)
7.9247e-05 TDB
period 1265.063330997732
3.46
6.9147e-06
1.893e-08
d
yr
n .2845707334794652 1.5554e-09 deg/d
Q 2.580302800835981 9.4024e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1214  
   data-arc span      8326 days (22.80 yr)  
   first obs. used      1996-07-14  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52214  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:08:41  

Additional Information
 Earth MOID = 1.01174 au 
 Jupiter MOID = 2.6804 au 
 T_jup = 3.589 
[ 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 15.4   n/a MPO381565  
diameter diameter 2.159 km 0.512 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.181   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39856 (1998 DV4)          Discovered 1998-Feb-22 by JPL/GEODSS NEAT at Haleakala
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DV4 = 1996 NT2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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