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100736 (1998 DD7)
Classification: Main-belt Asteroid          SPK-ID: 2100736
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .032572715766723 5.0584e-08  
a 3.104710532629435 2.33e-08 au
q 3.003581678912145 1.5352e-07 au
i 14.4650663136263 6.4671e-06 deg
node 159.2363960339326 1.7332e-05 deg
peri 142.8693160203451 9.4407e-05 deg
M 224.1913260393046 9.4983e-05 deg
tp 2459754.298219636496
(2022-Jun-23.79821964)		 0.00052954 TDB
period 1998.159257100732
5.47		 2.2493e-05
6.158e-08		 d
yr
n .1801658194764461 2.0281e-09 deg/d
Q 3.205839386346724 2.4059e-08 au
   Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      8146 days (22.30 yr)  
   first obs. used      1998-02-17  
   last obs. used      2020-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60087  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:04:31  

Additional Information
 Earth MOID = 2.00041 au 
 Jupiter MOID = 1.92935 au 
 T_jup = 3.171 
[ 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 14.96   n/a E2021B55  
diameter diameter 5.416 km 0.241 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100736 (1998 DD7)          Discovered 1998-Feb-17 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 DD7 = 2004 ER5 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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