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1988 Delores (1952 SV)
Classification: Main-belt Asteroid          SPK-ID: 2001988
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.

Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026772387406956 1.2666e-08  
a 2.153410523821175 4.6914e-09 au
q 1.932304277360062 2.721e-08 au
i 4.252980075855137 3.5078e-07 deg
node 106.356322722617 9.7628e-06 deg
peri 235.3329271560908 1.3196e-05 deg
M 240.8014676960827 7.3398e-06 deg
tp 2459582.670429811190
2.367e-05 TDB
period 1154.220207856594
n .3118988885738934 1.0192e-09 deg/d
Q 2.374516770282288 5.1731e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2929  
   data-arc span      24987 days (68.41 yr)  
   first obs. used      1952-09-28  
   last obs. used      2021-02-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42262  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:12:13  

Additional Information
 Earth MOID = .925348 au 
 Jupiter MOID = 2.93087 au 
 T_jup = 3.693 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.63   n/a E2021B10  
diameter diameter 5.761 km 0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 88.152 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.193   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

1988 Delores (1952 SV)          Discovered 1952-Sep-28 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1952 SV = 1951 GF1 = 1952 UU = 1971 UE = 1973 GH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2021-Apr-21 06:14 UT
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