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17757 (1998 DG15)
Classification: Main-belt Asteroid          SPK-ID: 2017757
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .063079239001156 9.52e-09  
a 2.702595207606027 1.1363e-08 au
q 2.532117558582068 2.9624e-08 au
i 12.80806372433397 9.4344e-07 deg
node 162.9304701206981 1.1636e-06 deg
peri 160.5693373635078 2.5792e-05 deg
M 248.6706081243681 2.9214e-05 deg
tp 2459702.353857107745
(2022-May-02.85385711)
0.00013303 TDB
period 1622.818426607551
4.44
1.0235e-05
2.802e-08
d
yr
n .2218362782289627 1.3991e-09 deg/d
Q 2.873072856629987 1.208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2122  
   data-arc span      10774 days (29.50 yr)  
   first obs. used      1991-09-15  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48805  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:12:01  

Additional Information
 Earth MOID = 1.5223 au 
 Jupiter MOID = 2.38748 au 
 T_jup = 3.328 
[ 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 13.51   n/a E2021B10  
diameter diameter 5.849 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.71503 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.156   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17757 (1998 DG15)          Discovered 1998-Feb-22 by JPL/GEODSS NEAT at Haleakala
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 DG15 = 1991 RF38 = 1995 OE10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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