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1875 Neruda (1969 QQ)
Classification: Main-belt Asteroid          SPK-ID: 2001875
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635108280107219 3.1091e-08  
a 3.136474426584036 1.3871e-08 au
q 2.623626896058826 9.7154e-08 au
i 13.37563624318467 3.9044e-06 deg
node 193.7481415158733 1.3453e-05 deg
peri 139.5352533504522 1.727e-05 deg
M 61.3432747870303 1.0185e-05 deg
tp 2458654.779200009696
(2019-Jun-20.27920001)
5.742e-05 TDB
period 2028.901920032868
5.55
1.346e-05
3.685e-08
d
yr
n .17743588117565 1.1771e-09 deg/d
Q 3.649321957109246 1.614e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2370  
   data-arc span      18700 days (51.20 yr)  
   first obs. used      1969-08-22  
   last obs. used      2020-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45472  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:03:11  

Additional Information
 Earth MOID = 1.63116 au 
 Jupiter MOID = 1.89017 au 
 T_jup = 3.149 
[ 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 12.3   n/a MPO416726  
diameter diameter 19.424 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.697 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.051   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1875 Neruda (1969 QQ)          Discovered 1969-Aug-22 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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