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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 ]

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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 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0239050988798503 3.653e-08  
a 2.759874791602944 1.0292e-08 au
q 2.693899711813669 1.0368e-07 au
i 6.49687600102024 3.2597e-06 deg
node 144.9456576871531 3.5671e-05 deg
peri 281.3119472202294 8.538e-05 deg
M 20.85662933486045 7.6344e-05 deg
tp 2459299.477129698446
(2021-Mar-25.97712970)
0.00035527 TDB
period 1674.682555257345
4.59
9.3675e-06
2.565e-08
d
yr
n .2149661133507655 1.2024e-09 deg/d
Q 2.825849871392219 1.0538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2962  
   data-arc span      34720 days (95.06 yr)  
   first obs. used      1926-03-18  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44002  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:46:15  

Additional Information
 Earth MOID = 1.71649 au 
 Jupiter MOID = 2.23005 au 
 T_jup = 3.332 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457147.5 (2015-May-05.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02409321458212023 3.7234e-08  
q 2.694014513432973 1.054e-07 au
tp 2457595.765034827619
(2016-Jul-26.26503483)
0.0003464 TDB
node 145.0915612890098 3.5701e-05 deg
peri 275.057195741007 8.3232e-05 deg
i 6.493734326068425 3.2603e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2962  
   data-arc span      34720 days (95.06 yr)  
   first obs. used      1926-03-18  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44002  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:46:15  

Additional Information
 Jupiter MOID = 2.23005 au 
 T_jup = 3.332 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.38636719006418E-15 -3.907588094975803E-15 -2.681429661626723E-12 8.190112474394625E-15 -5.593892406337892E-13 -7.000053754197354E-16
q -3.907588094975803E-15 1.110966932126794E-14 6.50054794494093E-12 -2.197654389203347E-14 1.340577414162978E-12 2.196076697285344E-15
tp -2.681429661626723E-12 6.50054794494093E-12 1.199961362008052E-7 -2.559744614749442E-11 2.606761436548468E-8 8.04817084100921E-12
node 8.190112474394625E-15 -2.197654389203347E-14 -2.559744614749442E-11 1.274548260990915E-9 -1.271536195528916E-9 3.058775806507187E-11
peri -5.593892406337892E-13 1.340577414162978E-12 2.606761436548468E-8 -1.271536195528916E-9 6.927619679428058E-9 -2.86801854253148E-11
i -7.000053754197354E-16 2.196076697285344E-15 8.04817084100921E-12 3.058775806507187E-11 -2.86801854253148E-11 1.062935974402769E-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. 2020-October); 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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