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90494 (2004 DY40)
Classification: Main-belt Asteroid          SPK-ID: 2090494
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1378025735314161 3.9364e-08  
a 2.311909585311601 1.2364e-08 au
q 1.993322494683714 8.8596e-08 au
i 4.084689775987045 4.4737e-06 deg
node 78.73243951666375 9.8334e-05 deg
peri 186.1768206640373 0.00010424 deg
M 147.648126091031 3.6417e-05 deg
tp 2458473.900874104613
(2018-Dec-21.40087410)
0.00012978 TDB
period 1283.969464031385
3.52
1.03e-05
2.82e-08
d
yr
n .2803804997586767 2.2493e-09 deg/d
Q 2.630496675939489 1.4068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      15358 days (42.05 yr)  
   first obs. used      1977-10-11  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57895  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:42:06  

Additional Information
 Earth MOID = .977595 au 
 Jupiter MOID = 2.43526 au 
 T_jup = 3.568 
[ 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 16.3   n/a MPO493506  

90494 (2004 DY40)          Discovered 2004-Feb-18 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2004 DY40 = 1998 SN112 = 4275 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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