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JPL Small-Body Database Browser
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1547 Nele (1929 CZ)
Classification: Main-belt Asteroid          SPK-ID: 2001547
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2538948853274823 4.2431e-08  
a 2.643100777262473 7.2321e-09 au
q 1.972031008510438 1.1274e-07 au
i 11.74326347033578 5.2056e-06 deg
node 291.3256805012417 1.9834e-05 deg
peri 154.828502767752 2.1908e-05 deg
M 115.1072383210292 8.3001e-06 deg
tp 2458498.655528612330
(2019-Jan-15.15552861)
3.5548e-05 TDB
period 1569.527792819571
4.30
6.4418e-06
1.764e-08
d
yr
n .2293683499247119 9.414e-10 deg/d
Q 3.314170546014507 9.0682e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2192  
   data-arc span      31907 days (87.36 yr)  
   first obs. used      1932-12-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39473  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:26:20  

Additional Information
 Earth MOID = .994881 au 
 Jupiter MOID = 1.92804 au 
 T_jup = 3.319 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456032.5 (2012-Apr-15.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2535249655126067 4.262e-08  
q 1.974326674459249 1.1338e-07 au
tp 2455358.989691903085
(2010-Jun-11.48969190)
3.4626e-05 TDB
node 291.3670091845029 1.9825e-05 deg
peri 155.0072380515219 2.1883e-05 deg
i 11.74348630546215 5.2057e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2192  
   data-arc span      31907 days (87.36 yr)  
   first obs. used      1932-12-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39473  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:26:20  

Additional Information
 Jupiter MOID = 1.92804 au 
 T_jup = 3.319 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.816448703393766E-15 -4.826836439053268E-15 2.250280958740586E-13 -7.985914563292976E-15 6.75226591474496E-14 -5.354370816926308E-15
q -4.826836439053268E-15 1.285599061808078E-14 -6.186620944817319E-13 1.870059172421299E-14 -1.815431637706979E-13 1.420379129891819E-14
tp 2.250280958740586E-13 -6.186620944817319E-13 1.198971337505005E-9 4.541782229115387E-12 3.31009374760085E-10 -7.125617047454345E-13
node -7.985914563292976E-15 1.870059172421299E-14 4.541782229115387E-12 3.930280636421278E-10 -3.838083412398739E-10 -5.821394551428498E-12
peri 6.75226591474496E-14 -1.815431637706979E-13 3.31009374760085E-10 -3.838083412398739E-10 4.788844219966899E-10 5.61282664182192E-12
i -5.354370816926308E-15 1.420379129891819E-14 -7.125617047454345E-13 -5.821394551428498E-12 5.61282664182192E-12 2.709908886749708E-11

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 10.7   n/a MPO473784  
diameter diameter 20.877 km 0.757 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.0998 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Licchelli, D. (2006) Minor Planet Bull. 33, 50-51.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Robinson, L. (2011) http://btboar.tripod.com/lightcurves/]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Benishek, V. (2019) Minor Planet Bull. 46, 341-345.]
geometric albedo albedo 0.203   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.798   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.10, mean=9.73, max.=14.95) deg.
U-B UB 0.355   0.013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.10, mean=9.73, max.=14.95) deg.
Tholen spectral type spec_T TD   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1547 Nele (1929 CZ)          Discovered 1929-Feb-12 by Bourgeois, P. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1929 CZ = 1932 YQ = 1940 PB = 1953 QA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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