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9026 Denevi (1988 ST2)
Classification: Main-belt Asteroid          SPK-ID: 2009026
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1508862367020563 3.3578e-08  
a 3.171072793189075 1.6857e-08 au
q 2.692601553116498 1.1026e-07 au
i 2.235121255800109 3.3887e-06 deg
node 80.50621945238279 0.00010675 deg
peri 231.7041384860616 0.00010751 deg
M 244.1767873587652 1.4719e-05 deg
tp 2459664.091554891426
(2022-Mar-25.59155489)
8.6547e-05 TDB
period 2062.565476411799
5.65
1.6447e-05
4.503e-08
d
yr
n .1745399135770877 1.3918e-09 deg/d
Q 3.649544033261653 1.9401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1952  
   data-arc span      14235 days (38.97 yr)  
   first obs. used      1981-05-08  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51761  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:06:22  

Additional Information
 Earth MOID = 1.67916 au 
 Jupiter MOID = 1.62469 au 
 T_jup = 3.183 
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Orbital Elements at Epoch 2456729.5 (2014-Mar-13.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .148710274960711 3.352e-08  
q 2.701417862867535 1.0987e-07 au
tp 2457600.482332736458
(2016-Jul-30.98233274)
8.1857e-05 TDB
node 80.52758285607001 0.00010668 deg
peri 231.6434796633502 0.00010746 deg
i 2.235369142309254 3.3884e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1952  
   data-arc span      14235 days (38.97 yr)  
   first obs. used      1981-05-08  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51761  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:06:22  

Additional Information
 Jupiter MOID = 1.62469 au 
 T_jup = 3.183 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.123565231899208E-15 -3.652772494635025E-15 3.595045742840886E-13 1.035211595928788E-15 7.440453780819523E-14 9.999145982527794E-17
q -3.652772494635025E-15 1.207051795198588E-14 -8.381354503473724E-13 -7.593906767066874E-15 -2.002938843474076E-13 -2.11515668783845E-16
tp 3.595045742840886E-13 -8.381354503473724E-13 6.700609659424779E-9 6.937046733164595E-12 1.087813408051764E-9 5.981390601977588E-13
node 1.035211595928788E-15 -7.593906767066874E-15 6.937046733164595E-12 1.138027932775948E-8 -1.137037816275952E-8 -1.8742074951694E-11
peri 7.440453780819523E-14 -2.002938843474076E-13 1.087813408051764E-9 -1.137037816275952E-8 1.154835555673148E-8 1.882302057233827E-11
i 9.999145982527794E-17 -2.11515668783845E-16 5.981390601977588E-13 -1.8742074951694E-11 1.882302057233827E-11 1.148150668940842E-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 13.2   n/a MPO337333  
diameter diameter 10.535 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.092   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9026 Denevi           Discovered 1988 Sept. 16 by S. J. Bus at Cerro Tololo.
Brett W. Denevi (b. 1980) is a planetary scientist at the Johns Hopkins University Applied Physics Laboratory and an expert in the composition and evolution of asteroid surfaces. She analyzed pitted terrain on Vesta, finding its structure to be consistent with devolatilization of the surface.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

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Alternate Designations
 1988 ST2 = 1981 JH5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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