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7718 Desnoux (1997 EP30)
Classification: Main-belt Asteroid          SPK-ID: 2007718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1147269690167639 3.3027e-08  
a 3.038821872694662 1.7096e-08 au
q 2.690187049858557 1.0484e-07 au
i 12.63225915785927 4.1724e-06 deg
node 82.09029684563444 1.8581e-05 deg
peri 212.5949123488615 2.7429e-05 deg
M 5.968064252734781 2.0404e-05 deg
tp 2458968.423477306431
(2020-Apr-28.92347731)
0.00010962 TDB
period 1934.890054910763
5.30
1.6328e-05
4.47e-08
d
yr
n .1860570832364959 1.5701e-09 deg/d
Q 3.387456695530767 1.9057e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2283  
   data-arc span      25624 days (70.15 yr)  
   first obs. used      1950-04-22  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45049  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:43:18  

Additional Information
 Earth MOID = 1.68316 au 
 Jupiter MOID = 1.78611 au 
 T_jup = 3.194 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456950.5 (2014-Oct-20.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137300737722932 3.2999e-08  
q 2.691832902433996 1.0426e-07 au
tp 2457041.656052287594
(2015-Jan-19.15605229)
0.00011034 TDB
node 82.11417787035055 1.8577e-05 deg
peri 213.7966809198874 2.7609e-05 deg
i 12.63518242396369 4.1747e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2283  
   data-arc span      25624 days (70.15 yr)  
   first obs. used      1950-04-22  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45049  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:43:18  

Additional Information
 Jupiter MOID = 1.78611 au 
 T_jup = 3.194 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.088911322914874E-15 -3.407063392523917E-15 -3.032713218642764E-13 -3.070113348980616E-15 -2.948552047378645E-14 -5.731350410487076E-16
q -3.407063392523917E-15 1.086974023220418E-14 8.687139544901583E-13 1.133851933791413E-14 7.423595641013434E-14 2.52532190627958E-15
tp -3.032713218642764E-13 8.687139544901583E-13 1.21756960260156E-8 2.12239185927073E-11 2.275366396016424E-9 8.20942405365501E-13
node -3.070113348980616E-15 1.133851933791413E-14 2.12239185927073E-11 3.450921927196826E-10 -3.325003558754621E-10 -1.744036896129286E-11
peri -2.948552047378645E-14 7.423595641013434E-14 2.275366396016424E-9 -3.325003558754621E-10 7.622766733267245E-10 1.719041066603778E-11
i -5.731350410487076E-16 2.52532190627958E-15 8.20942405365501E-13 -1.744036896129286E-11 1.719041066603778E-11 1.742787634214311E-11

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 12.1   n/a MPO347587  
diameter diameter 13.624 km 0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 19. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.263   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7718 Desnoux (1997 EP30)          Discovered 1997-Mar-10 by Buil, C. at Ramonville Saint A
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1997 EP30 = 1977 LR = 1978 TE = 1979 YL5 = 1992 DG5 = 1993 LY1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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