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17915 (1999 GU)
Classification: Main-belt Asteroid          SPK-ID: 2017915
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04391375942636445 4.4357e-08  
a 2.230106133983539 6.1783e-09 au
q 2.132173789720526 9.7418e-08 au
i .888691450293183 4.5608e-06 deg
node 10.36761251355195 0.00017928 deg
peri 173.7096083880164 0.0001824 deg
M 198.7006786318609 3.468e-05 deg
tp 2459745.525428039903
(2022-Jun-15.02542804)
0.00011789 TDB
period 1216.428887797675
3.33
5.055e-06
1.384e-08
d
yr
n .2959482495123693 1.2299e-09 deg/d
Q 2.328038478246552 6.4497e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1362  
   data-arc span      10578 days (28.96 yr)  
   first obs. used      1992-02-26  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52171  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:17:40  

Additional Information
 Earth MOID = 1.13253 au 
 Jupiter MOID = 2.62756 au 
 T_jup = 3.641 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457570.5 (2016-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04315635278525316 4.4355e-08  
q 2.134093123003683 9.7335e-08 au
tp 2457310.394261268997
(2015-Oct-14.89426127)
0.00011731 TDB
node 10.44320122939828 0.00017917 deg
peri 173.1851366335793 0.00018241 deg
i .8891583801679019 4.561e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1362  
   data-arc span      10578 days (28.96 yr)  
   first obs. used      1992-02-26  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52171  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:17:40  

Additional Information
 Jupiter MOID = 2.62756 au 
 T_jup = 3.641 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.967392399560057E-15 -4.309986110839188E-15 8.873776865149522E-13 7.943215374112563E-15 2.596274420749231E-13 1.138824791023402E-16
q -4.309986110839188E-15 9.474181921833173E-15 -1.807993073517593E-12 -1.834344682101046E-14 -5.271657079136776E-13 -2.236801851218126E-16
tp 8.873776865149522E-13 -1.807993073517593E-12 1.376266106974207E-8 -2.521972348468108E-12 4.023073595677777E-9 4.737116495220217E-13
node 7.943215374112563E-15 -1.834344682101046E-14 -2.521972348468108E-12 3.210052004952311E-8 -3.209703024894944E-8 -1.642948335949654E-12
peri 2.596274420749231E-13 -5.271657079136776E-13 4.023073595677777E-9 -3.209703024894944E-8 3.327412101604167E-8 1.780644923474616E-12
i 1.138824791023402E-16 -2.236801851218126E-16 4.737116495220217E-13 -1.642948335949654E-12 1.780644923474616E-12 2.080262691949726E-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 15.68   n/a E2021B10  
diameter diameter 1.951 km 0.310 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.580 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:
[Warner, B.D. (2018) Minor Planet Bull. 45, 190-195.]
geometric albedo albedo 0.293   0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17915 (1999 GU)          Discovered 1999-Apr-05 by Korlevic, K. at Visnjan
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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