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18753 (1999 GE17)
Classification: Main-belt Asteroid          SPK-ID: 2018753
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2724154687543569 2.115e-08  
a 2.745683209308583 1.1198e-08 au
q 1.997716630793818 5.8843e-08 au
i 8.401428101859148 8.9914e-07 deg
node 19.59315180849924 4.6673e-06 deg
peri 277.1738424426642 5.7854e-06 deg
M 203.4514847432663 6.2905e-06 deg
tp 2459923.137543561769
(2022-Dec-09.63754356)
3.1684e-05 TDB
period 1661.782069638932
4.55
1.0166e-05
2.783e-08
d
yr
n .2166349045264521 1.3253e-09 deg/d
Q 3.493649787823347 1.4248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2542  
   data-arc span      10778 days (29.51 yr)  
   first obs. used      1991-09-16  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:46:59  

Additional Information
 Earth MOID = 1.00156 au 
 Jupiter MOID = 1.84167 au 
 T_jup = 3.278 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457021.5 (2014-Dec-30.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2744370334291123 2.1128e-08  
q 1.989805111633498 5.8781e-08 au
tp 2456601.647791617371
(2013-Nov-05.14779162)
2.4276e-05 TDB
node 19.64513758714941 4.6704e-06 deg
peri 277.1801863738012 5.7809e-06 deg
i 8.406128426760361 8.9887e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2542  
   data-arc span      10778 days (29.51 yr)  
   first obs. used      1991-09-16  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:46:59  

Additional Information
 Jupiter MOID = 1.84167 au 
 T_jup = 3.278 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.46412154177414E-16 -1.230263534893218E-15 2.798190724909818E-13 2.643956903510132E-14 1.302943747528632E-15 -3.053639349040389E-15
q -1.230263534893218E-15 3.455220336021353E-15 -7.684860197128787E-13 -7.220002236749314E-14 5.31027754699597E-16 8.329793869547538E-15
tp 2.798190724909818E-13 -7.684860197128787E-13 5.893208574702093E-10 -4.89394613769445E-12 8.6184124537405E-11 4.770800335874072E-13
node 2.643956903510132E-14 -7.220002236749314E-14 -4.89394613769445E-12 2.181304557866839E-11 -2.117154846561237E-11 1.896104358109349E-12
peri 1.302943747528632E-15 5.31027754699597E-16 8.6184124537405E-11 -2.117154846561237E-11 3.341861740300446E-11 -1.563640028473226E-12
i -3.053639349040389E-15 8.329793869547538E-15 4.770800335874072E-13 1.896104358109349E-12 -1.563640028473226E-12 8.079741787301651E-13

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 13.63   n/a MPCxxxxx  
rotation period rot_per 28.5893 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.]

18753 (1999 GE17)          Discovered 1999-Apr-15 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GE17 = 1991 VF14 = 2000 QV115 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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