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JPL Small-Body Database Browser
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2732 Witt (1926 FG)
Classification: Main-belt Asteroid          SPK-ID: 2002732
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02355439333142171 3.7921e-08  
a 2.759035972516362 1.2974e-08 au
q 2.694048554004171 1.0599e-07 au
i 6.49690484784567 4.279e-06 deg
node 144.9485579188623 3.7668e-05 deg
peri 281.2370019078655 0.00010357 deg
M 295.7643900585944 9.8087e-05 deg
tp 2459299.181155422402
(2021-Mar-25.68115542)
0.00045653 TDB
period 1673.919124456779
4.58
1.1807e-05
3.233e-08
d
yr
n .21506415378152 1.5169e-09 deg/d
Q 2.824023391028554 1.3279e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2328  
   data-arc span      34229 days (93.71 yr)  
   first obs. used      1926-03-18  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47578  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:20:00  

Additional Information
 Earth MOID = 1.71701 au 
 Jupiter MOID = 2.23225 au 
 T_jup = 3.333 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456164.5 (2012-Aug-25.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02487321473665559 3.8104e-08  
q 2.690735118839886 1.07e-07 au
tp 2455919.740395440536
(2011-Dec-24.24039544)
0.00042608 TDB
node 145.1047234787031 3.7705e-05 deg
peri 274.7570484231448 9.8494e-05 deg
i 6.493430847467906 4.2773e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2328  
   data-arc span      34229 days (93.71 yr)  
   first obs. used      1926-03-18  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47578  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:20:00  

Additional Information
 Jupiter MOID = 2.23225 au 
 T_jup = 3.333 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.451927938789202E-15 -4.048429333615757E-15 -9.38167923107702E-13 6.623962980931579E-16 -2.017178725604164E-13 1.731414734982822E-15
q -4.048429333615757E-15 1.145000076507137E-14 3.67274567057102E-12 -2.605456231527024E-15 7.903580335992095E-13 -4.40423499459739E-15
tp -9.38167923107702E-13 3.67274567057102E-12 1.815483649232787E-7 -2.839105556444233E-11 3.879251784531963E-8 3.69528617261489E-12
node 6.623962980931579E-16 -2.605456231527024E-15 -2.839105556444233E-11 1.42164389771192E-9 -1.418090379513769E-9 5.989057006909716E-12
peri -2.017178725604164E-13 7.903580335992095E-13 3.879251784531963E-8 -1.418090379513769E-9 9.70106130500815E-9 -5.128159387321154E-12
i 1.731414734982822E-15 -4.40423499459739E-15 3.69528617261489E-12 5.989057006909716E-12 -5.128159387321154E-12 1.82956793605151E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.9   n/a MPO492782  
diameter diameter 11.001 km 0.291 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.622 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.305   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B A   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2732 Witt (1926 FG)          Discovered 1926-Mar-19 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1926 FG = 1935 DF = 1965 UP1 = 1969 RD = 1978 PQ1 = 1979 YL6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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