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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 
[ 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 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

[ 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
1927-Jan-06 23:14 00:01 Hygie 0.0200139733281993 0.0200060207733127 0.0200219315984443 5.77955150589432 5.77955117187239 2424887.468111929 1.27885899885533 675.937024193758 90.9741140428147 -54.8287439227684 26998.1120578069 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 21:32:22 2021-Apr-13 21:32

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