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33342 (1998 WT24)
Classification: Aten [NEO, PHA]          SPK-ID: 2033342
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 188 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4175892283406078 9.8834e-09  
a .7188252641083243 2.5581e-09 au
q .4186515767575956 7.98e-09 au
i 7.366990987302719 1.9148e-06 deg
node 81.68020514655085 2.1377e-06 deg
peri 167.5435688571262 2.8426e-06 deg
M 240.1018688861307 1.7008e-05 deg
tp 2459470.638422104961
(2021-Sep-13.13842210)
1.0901e-05 TDB
period 222.6042366952175
0.61
1.1883e-06
3.253e-09
d
yr
n 1.617219893675701 8.633e-09 deg/d
Q 1.018998951459053 3.6264e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -2.499522679559495E-14 3.E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      1801  
   # delay obs. used      16  
   # Doppler obs. used      1  
   data-arc span      8054 days (22.05 yr)  
   first obs. used      1998-11-24  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .33323  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 07:22:31  

Additional Information
 Earth MOID = .0108264 au 
 Jupiter MOID = 4.00756 au 
 T_jup = 7.909 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 17.85   n/a MPCxxxxx  
diameter diameter 0.432 km 0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 3.697 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2001) http://www.asu.cas.cz/~ppravec/neo.htm]
[Krugly, Yu.N.; Belskaya, I.N.; Chiorny, V.G.; Shevchenko, V.G.; Gaflonyuk, N.M. (2002) Proc. ACM 2002, ESA SP 500, 903-906.]
[Busch, M.W.; Benner, L.A.M.; Ostro, S.J.; Giorgini, J.D.; et al. (2008) Icarus 195, 614-621.]
[Robinson, L. (2011) http://btboar.tripod.com/lightcurves/]
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2016) Minor Planet Bull. 43, 143-154.]
geometric albedo albedo 0.654   0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

33342 (1998 WT24)          Discovered 1998-Nov-25 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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