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175829 (1999 TW98)
Classification: Main-belt Asteroid          SPK-ID: 2175829
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2693953358001546 4.3057e-08  
a 2.361191794203525 9.6507e-09 au
q 1.725097737915497 1.0317e-07 au
i 5.854254336557662 4.3779e-06 deg
node 140.9148657341555 4.0529e-05 deg
peri 198.1439985985745 4.1335e-05 deg
M 325.1704455523627 7.0333e-06 deg
tp 2459328.715562741078
(2021-Apr-24.21556274)
2.6161e-05 TDB
period 1325.242407455466
3.63
8.1248e-06
2.224e-08
d
yr
n .2716484153953529 1.6654e-09 deg/d
Q 2.997285850491554 1.225e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      10064 days (27.55 yr)  
   first obs. used      1992-11-19  
   last obs. used      2020-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51222  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:59  

Additional Information
 Earth MOID = .715272 au 
 Jupiter MOID = 2.40339 au 
 T_jup = 3.494 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.92   n/a E2021B55  
diameter diameter 1.151 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.254   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

175829 (1999 TW98)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

Alternate Designations
 1999 TW98 = 2006 OS12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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