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20932 (2258 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2020932
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2405133251930297 9.9223e-09  
a 2.460805941635082 1.0775e-08 au
q 1.868949321957663 2.2174e-08 au
i 8.189996498800609 6.0667e-07 deg
node 27.26240720941321 5.1881e-06 deg
peri 332.2927512069784 5.5316e-06 deg
M 146.1765252886171 4.4726e-06 deg
tp 2458627.981387090295
(2019-May-24.48138709)
1.4897e-05 TDB
period 1409.98494963913
3.86
9.2608e-06
2.535e-08
d
yr
n .255321874245635 1.677e-09 deg/d
Q 3.0526625613125 1.3367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2354  
   data-arc span      23687 days (64.85 yr)  
   first obs. used      1956-05-08  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42845  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:34:58  

Additional Information
 Earth MOID = .869141 au 
 Jupiter MOID = 2.41015 au 
 T_jup = 3.436 
[ 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 13.46   n/a E2021B10  
diameter diameter 5.169 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.3245 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Stephens, R.D. (2016) Minor Planet Bull. 43, 158-159.]
geometric albedo albedo 0.347   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20932 (2258 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2258 T-1 = 1930 TB = 1957 TG = 1992 WX3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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