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190344 (1998 TO29)
Classification: Main-belt Asteroid          SPK-ID: 2190344
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08014386537305715 4.938e-08  
a 3.100972175010655 2.4469e-08 au
q 2.852448278491005 1.4889e-07 au
i 11.08794659213223 6.707e-06 deg
node 30.22275923114828 2.1377e-05 deg
peri 287.2071314558145 4.4902e-05 deg
M 91.60201861063726 3.9559e-05 deg
tp 2458692.986295234148
(2019-Jul-28.48629523)
0.0002179 TDB
period 1994.55139184553
5.46
2.3607e-05
6.463e-08
d
yr
n .1804917143132106 2.1363e-09 deg/d
Q 3.349496071530305 2.643e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      8144 days (22.30 yr)  
   first obs. used      1998-10-15  
   last obs. used      2021-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60655  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:15  

Additional Information
 Earth MOID = 1.86381 au 
 Jupiter MOID = 1.93443 au 
 T_jup = 3.188 
[ 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 15.29   n/a E2021B55  
diameter diameter 5.558 km 0.471 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190344 (1998 TO29)          Discovered 1998-Oct-15 by Spacewatch at Kitt Peak
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Alternate Designations
 1998 TO29 = 2003 SQ24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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