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136604 (1993 QD1)
Classification: Main-belt Asteroid          SPK-ID: 2136604
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2597305091746885 7.1736e-08  
a 2.613041695766503 2.8688e-08 au
q 1.934355045630378 1.9615e-07 au
i 13.52728731066083 9.9599e-06 deg
node 340.0320343492829 2.1921e-05 deg
peri 17.98397663060324 2.6991e-05 deg
M 11.40259353018801 1.9204e-05 deg
tp 2458551.632617325452
(2019-Mar-09.13261733)
8.1696e-05 TDB
period 1542.829507713517
4.22
2.5408e-05
6.956e-08
d
yr
n .2333375127971997 3.8427e-09 deg/d
Q 3.291728345902628 3.614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      9577 days (26.22 yr)  
   first obs. used      1993-07-21  
   last obs. used      2019-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52703  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:04:00  

Additional Information
 Earth MOID = .932857 au 
 Jupiter MOID = 2.1696 au 
 T_jup = 3.322 
[ 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 15.4   n/a MPO366745  
diameter diameter 5.243 km 0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.028   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

136604 (1993 QD1)          Discovered 1993-Aug-19 by Helin, E. F. at Palomar
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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