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JPL Small-Body Database Browser
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827 Wolfiana (A916 QG)
Classification: Main-belt Asteroid          SPK-ID: 2000827
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1561956546362181 3.7098e-08  
a 2.274778088032097 4.6756e-09 au
q 1.919467635419799 8.4341e-08 au
i 3.421429206260004 3.8102e-06 deg
node 172.8662599508822 5.1533e-05 deg
peri 195.6502417838117 5.2469e-05 deg
M 72.22422934762778 9.0587e-06 deg
tp 2458749.087192992422
(2019-Sep-22.58719299)
3.1575e-05 TDB
period 1253.161319134254
3.43
3.8637e-06
1.058e-08
d
yr
n .2872734695072665 8.8571e-10 deg/d
Q 2.630088540644395 5.406e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2883  
   data-arc span      37850 days (103.63 yr)  
   first obs. used      1916-08-29  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44638  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:13:38  

Additional Information
 Earth MOID = .91865 au 
 Jupiter MOID = 2.83124 au 
 T_jup = 3.591 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1   n/a MPO256867  
diameter diameter 8.488 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.0654 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[Pilcher, F.; Martinez, L. (2013) Minor Planet Bull. 40, 21.]
geometric albedo albedo 0.129   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

827 Wolfiana (A916 QG)          Discovered 1916-Aug-29 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A916 QG = 1928 DK = 1940 RA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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