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181856 (1998 XV3)
Classification: Main-belt Asteroid          SPK-ID: 2181856
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2682114160442119 9.8874e-08  
a 2.539089683112556 1.1775e-08 au
q 1.858076843741688 2.5745e-07 au
i 3.301399659875128 3.488e-06 deg
node 277.8349008492471 0.00010441 deg
peri 118.3482097888323 0.00010487 deg
M 183.0007303409587 1.1713e-05 deg
tp 2459927.081710708595
(2022-Dec-13.58171071)
5.2311e-05 TDB
period 1477.799407641415
4.05
1.028e-05
2.815e-08
d
yr
n .2436054569642603 1.6946e-09 deg/d
Q 3.220102522483424 1.4934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1106  
   data-arc span      7836 days (21.45 yr)  
   first obs. used      1998-12-09  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:20  

Additional Information
 Earth MOID = .866942 au 
 Jupiter MOID = 2.22985 au 
 T_jup = 3.393 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457134.5 (2015-Apr-22.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2654113770957334 9.8246e-08  
q 1.867001125322364 2.5519e-07 au
tp 2456968.536913304787
(2014-Nov-07.03691330)
3.825e-05 TDB
node 278.1371623411083 0.00010435 deg
peri 117.9615137535603 0.00010485 deg
i 3.300459741519366 3.4799e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1106  
   data-arc span      7836 days (21.45 yr)  
   first obs. used      1998-12-09  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:20  

Additional Information
 Jupiter MOID = 2.22985 au 
 T_jup = 3.393 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.65228146750644E-15 -2.506494645117651E-14 -2.858433402433886E-12 -2.585647200089011E-13 -8.651351906987351E-13 -1.396438102184116E-14
q -2.506494645117651E-14 6.512293848963813E-14 7.455905001538804E-12 6.73889278117731E-13 2.253569468227952E-12 3.637927700386357E-14
tp -2.858433402433886E-12 7.455905001538804E-12 1.463030561256304E-9 7.806872528792683E-11 4.53168999328825E-10 4.311554627093265E-12
node -2.585647200089011E-13 6.73889278117731E-13 7.806872528792683E-11 1.088855620542874E-8 -1.08395450199755E-8 -9.949240856355013E-11
peri -8.651351906987351E-13 2.253569468227952E-12 4.53168999328825E-10 -1.08395450199755E-8 1.099425020440635E-8 1.010112033744299E-10
i -1.396438102184116E-14 3.637927700386357E-14 4.311554627093265E-12 -9.949240856355013E-11 1.010112033744299E-10 1.210959211982372E-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 15.7   n/a MPO459829  
diameter diameter 1.735 km 0.330 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 43.703 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.406   0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181856 (1998 XV3)          Discovered 1998-Dec-09 by Kobayashi, T. at Oizumi
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1998 XV3 = 2002 TW292 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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