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2523 Ryba (1980 PV)
Classification: Main-belt Asteroid          SPK-ID: 2002523
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03585340036494739 1.1991e-08  
a 3.016360213422903 1.2592e-08 au
q 2.908213443046154 3.5841e-08 au
i 8.888410412786397 2.5995e-07 deg
node 282.7280948494608 5.5095e-06 deg
peri 279.1238623573105 3.6386e-05 deg
M 4.203241745220268 3.3884e-05 deg
tp 2459178.158871815375
(2020-Nov-24.65887182)
0.0001801 TDB
period 1913.476938510829
5.24
1.1982e-05
3.28e-08
d
yr
n .1881391893231655 1.1781e-09 deg/d
Q 3.124506983799652 1.3043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2589  
   data-arc span      25237 days (69.10 yr)  
   first obs. used      1952-01-31  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:53:45  

Additional Information
 Earth MOID = 1.91904 au 
 Jupiter MOID = 1.95727 au 
 T_jup = 3.229 
[ 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 11.39   n/a MPCxxxxx  
diameter diameter 17.353 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.390 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.199   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2523 Ryba (1980 PV)          Discovered 1980-Aug-06 by Vavrova, Z. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 PV = 1952 DW1 = 1977 UL = 1978 EO4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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