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101714 (1999 DQ4)
Classification: Main-belt Asteroid          SPK-ID: 2101714
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1913791649728878 2.9782e-08  
a 2.604505298541412 1.1045e-08 au
q 2.106057249339095 7.823e-08 au
i 2.540226924606653 5.0704e-06 deg
node 306.1397115741655 0.00010654 deg
peri 124.0170076750763 0.00010828 deg
M 130.814924657792 1.8464e-05 deg
tp 2458642.619618201879
(2019-Jun-08.11961820)		 7.7329e-05 TDB
period 1535.275412745963
4.20		 9.766e-06
2.674e-08		 d
yr
n .2344856154219986 1.4916e-09 deg/d
Q 3.102953347743729 1.3159e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1104  
   data-arc span      7769 days (21.27 yr)  
   first obs. used      1999-02-12  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55935  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:12  

Additional Information
 Earth MOID = 1.12123 au 
 Jupiter MOID = 2.19195 au 
 T_jup = 3.385 
[ 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 15.33   n/a E2021B55  
diameter diameter 2.971 km 0.268 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.182   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

101714 (1999 DQ4)          Discovered 1999-Feb-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 DQ4 = 2001 QN4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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