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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 
[ 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 13.63   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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1906-Jun-24 18:34 00:02 Jupiter 1.87974056703412 1.87973988486535 1.87974124920995 1.44159478175408 1.08488864547437 2417386.273495867 2.07889728486154 479.016924777014 40.5197981917865 32.8567892588947 3553738.01184224 T 34 CATAB v2.0g-lin.ifort 2021-May-04 02:47:47 2021-May-04 02:47
1943-Jul-21 01:30 00:01 Jupiter 1.90663945045363 1.90663883170511 1.90664006925482 1.10875157417383 0.583808375298678 2430926.562622617 1.35603387407571 1633.07344899026 157.104803127523 -29.2634744851872 4077323.78272902 T 34 CATAB v2.0g-lin.ifort 2021-May-04 02:47:47 2021-May-04 02:47
2002-May-16 23:18 < 00:01 Jupiter 1.82934779418012 1.82934760784969 1.82934798051056 0.655345603120659 n/a 2452411.470585930 0.257707351257245 14.6231399578164 8.65236682670156 73.3048395513599 30760969.1649272 F 34 CATAB v2.0g-lin.ifort 2021-May-04 02:47:47 2021-May-04 02:47
2061-Mar-13 03:37 < 00:01 Jupiter 1.83243829136907 1.83243807507227 1.83243850766588 0.735375500612331 n/a 2473896.650994547 0.875168712069961 16.2139349840803 8.29399753769346 -60.3355920911096 29905467.8640931 F 34 CATAB v2.0g-lin.ifort 2021-May-04 02:47:47 2021-May-04 02:47
2120-Jan-05 23:24 00:02 Jupiter 1.91148328662035 1.91148249551873 1.91148407772436 1.42005935433937 1.06316614558399 2495378.474763471 2.02878125573912 489.582301728558 33.7471902175332 25.3130255777337 3375523.236046 T 34 CATAB v2.0g-lin.ifort 2021-May-04 02:47:47 2021-May-04 02:47
2157-Feb-03 00:24 00:03 Jupiter 1.88639748478113 1.8863966120087 1.8863983576329 1.22838990453152 0.781607259432011 2508921.516912722 2.6315031293622 1293.84139334694 138.457241662277 -40.6948829680828 2822469.98156983 T 34 CATAB v2.0g-lin.ifort 2021-May-04 02:47:47 2021-May-04 02:47

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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