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JPL Small-Body Database Browser
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11723 (1998 HT125)
Classification: Main-belt Asteroid          SPK-ID: 2011723
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1437589587340473 3.0343e-08  
a 2.341727194107657 7.6186e-09 au
q 2.005082931043538 7.2523e-08 au
i 4.500398248862658 3.5397e-06 deg
node 125.5116691773133 4.3367e-05 deg
peri 73.23967055505085 4.5096e-05 deg
M 328.1195968747611 1.2551e-05 deg
tp 2458716.410873729093
(2019-Aug-20.91087373)
4.5756e-05 TDB
period 1308.889174912548
3.58
6.3876e-06
1.749e-08
d
yr
n .2750423847183648 1.3422e-09 deg/d
Q 2.678371457171776 8.7139e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1814  
   data-arc span      15776 days (43.19 yr)  
   first obs. used      1976-02-27  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44009  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:57:18  

Additional Information
 Earth MOID = 1.009 au 
 Jupiter MOID = 2.28602 au 
 T_jup = 3.546 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456809.5 (2014-Jun-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1443715821785495 3.0277e-08  
q 2.003387585528906 7.238e-08 au
tp 2457407.104181178513
(2016-Jan-19.60418118)
4.4593e-05 TDB
node 125.5310302633682 4.3358e-05 deg
peri 73.24091977514156 4.5079e-05 deg
i 4.500881262936698 3.5406e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1814  
   data-arc span      15776 days (43.19 yr)  
   first obs. used      1976-02-27  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44009  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:57:18  

Additional Information
 Jupiter MOID = 2.28602 au 
 T_jup = 3.546 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.167063483355162E-16 -2.182901876879357E-15 -6.518402184697553E-14 -6.225828375674349E-15 9.051548383557386E-16 -2.412757136776222E-16
q -2.182901876879357E-15 5.238903635121881E-15 1.769907274964091E-13 1.445820703519964E-14 -1.442090193192867E-15 6.412328970163192E-16
tp -6.518402184697553E-14 1.769907274964091E-13 1.988563331900577E-9 -2.742214547255155E-12 5.588378635119092E-10 -9.829845892976429E-13
node -6.225828375674349E-15 1.445820703519964E-14 -2.742214547255155E-12 1.879902528770309E-9 -1.874545786923738E-9 4.443656179885773E-12
peri 9.051548383557386E-16 -1.442090193192867E-15 5.588378635119092E-10 -1.874545786923738E-9 2.032095679242603E-9 -4.692634009797079E-12
i -2.412757136776222E-16 6.412328970163192E-16 -9.829845892976429E-13 4.443656179885773E-12 -4.692634009797079E-12 1.25356995296778E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO337357  
rotation period rot_per 4.118 h n/a LCDB (Rev. 2019-January); 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.]

11723 (1998 HT125)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HT125 = 1976 DH1 = 1988 RO14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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