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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2538948835396307 4.433e-08  
a 2.643100777455269 7.3778e-09 au
q 1.972031013379756 1.1806e-07 au
i 11.74326308762119 5.4933e-06 deg
node 291.3256805467801 1.9847e-05 deg
peri 154.8285021423908 2.2206e-05 deg
M 115.1072386031293 8.4685e-06 deg
tp 2458498.655527327521
(2019-Jan-15.15552733)
3.6381e-05 TDB
period 1569.5277929913
4.30
6.5716e-06
1.799e-08
d
yr
n .2293683498996156 9.6036e-10 deg/d
Q 3.314170541530782 9.2509e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2043  
   data-arc span      31791 days (87.04 yr)  
   first obs. used      1932-12-19  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40445  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:06:10  

Additional Information
 Earth MOID = .994881 au 
 Jupiter MOID = 1.92804 au 
 T_jup = 3.319 
[ 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 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

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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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