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13629 (1995 WD2)
Classification: Main-belt Asteroid          SPK-ID: 2013629
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1653654223077003 3.916e-08  
a 2.32701606174094 7.7326e-09 au
q 1.942208067974348 9.0729e-08 au
i 2.328799668969605 3.9671e-06 deg
node 222.7837964566179 0.00011248 deg
peri 263.61999892569 0.00011325 deg
M 281.6492889200915 1.4518e-05 deg
tp 2459282.687609030678
(2021-Mar-09.18760903)
5.3093e-05 TDB
period 1296.574566469943
3.55
6.4627e-06
1.769e-08
d
yr
n .2776546828156107 1.384e-09 deg/d
Q 2.711824055507532 9.0113e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      15389 days (42.13 yr)  
   first obs. used      1977-10-18  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52071  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:42:08  

Additional Information
 Earth MOID = .959118 au 
 Jupiter MOID = 2.35388 au 
 T_jup = 3.554 
[ 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 14.9   n/a MPO247485  
diameter diameter 3.186 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.91630 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.209   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13629 (1995 WD2)          Discovered 1995-Nov-18 by Kobayashi, T. at Oizumi
Reference: 20000222/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
1979-Dec-07 22:38 < 00:01 Iris 0.018487268251378 0.0184859157572048 0.0184886209008869 5.25687818527848 5.25687812612608 2444215.443021184 0.212946937599984 127.010801232581 41.785041131259 63.8204563284553 60148.6728228365 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 20:42:24 2020-Feb-22 20:42
1996-Feb-11 14:14 < 00:01 Iris 0.0205253317562152 0.020523797448954 0.0205268660808643 5.55466691581991 5.55466686539735 2450125.092723299 0.177460644417873 83.1163025213772 30.7037496122499 24.9004627472969 53794.9405760435 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 20:42:24 2020-Feb-22 20:42
2023-Oct-11 04:20 < 00:01 Amphi 0.0199364217748745 0.0199356169022627 0.0199372266983464 3.48373935256472 3.48373926979334 2460228.680860051 0.534992422136075 80.3755973787657 27.8163851196495 67.4641600916034 99977.1874799473 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 20:42:24 2020-Feb-22 20:42
2175-May-01 22:19 < 00:01 Iris 0.0360631464867022 0.0360489651508178 0.0360773278429288 5.03671665820757 5.03671662655843 2515583.430034884 0.659993553256531 708.167060826007 40.7352720305738 3.43114437629548 10978.8964573825 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 20:42:24 2020-Feb-22 20:42
2191-Jul-05 12:33 < 00:01 Iris 0.0122088151767124 0.0121886328669585 0.0122289976083351 5.52878665450469 5.52878656933802 2521492.022769324 0.815689814645795 1007.99106188436 30.2892511850742 -3.47256271633933 4071.51859519516 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 20:42:24 2020-Feb-22 20:42

Alternate Designations
 1995 WD2 = 1977 UZ4 = 1982 BT11 = 1991 TU7 = 1993 FX24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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