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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .259958153918684 5.9812e-08  
a 2.613480753849963 2.3237e-08 au
q 1.934085121777116 1.5819e-07 au
i 13.52811483108316 8.5228e-06 deg
node 340.0210500191302 2.1761e-05 deg
peri 18.00473675999819 2.6192e-05 deg
M 104.6925310173138 1.6695e-05 deg
tp 2458551.712672924086
(2019-Mar-09.21267292)
6.7642e-05 TDB
period 1543.218376491538
4.23
2.0581e-05
5.635e-08
d
yr
n .2332787151086482 3.1112e-09 deg/d
Q 3.29287638592281 2.9277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      9691 days (26.53 yr)  
   first obs. used      1993-07-21  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51975  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:41:28  

Additional Information
 Earth MOID = .933498 au 
 Jupiter MOID = 2.17216 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 15.3   n/a MPO493780  
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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