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27705 (1985 DU1)
Classification: Main-belt Asteroid          SPK-ID: 2027705
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1011768804514086 3.099e-08  
a 2.75917914529947 1.2255e-08 au
q 2.480014006771486 8.8553e-08 au
i 3.242152279649333 4.8192e-06 deg
node 344.8635238869813 6.0602e-05 deg
peri 86.74878495434336 6.5597e-05 deg
M 240.343018436223 2.5693e-05 deg
tp 2459156.921391005491
(2020-Nov-03.42139101)
0.00012092 TDB
period 1674.049421472419
4.58
1.1153e-05
3.054e-08
d
yr
n .215047414599839 1.4328e-09 deg/d
Q 3.038344283827454 1.3495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1945  
   data-arc span      12702 days (34.78 yr)  
   first obs. used      1985-02-16  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50169  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:07:18  

Additional Information
 Earth MOID = 1.49696 au 
 Jupiter MOID = 2.19508 au 
 T_jup = 3.332 
[ 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 13.7   n/a MPO351018  
diameter diameter 4.616 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.362   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27705 (1985 DU1)          Discovered 1985-Feb-16 by Debehogne, H. at La Silla
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1985 DU1 = 1997 WZ40 = 1999 FS18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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