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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03607388029472133 4.3902e-08  
a 3.017078282966947 1.4327e-08 au
q 2.908240562147394 1.3856e-07 au
i 8.888456822697318 4.0846e-06 deg
node 282.7307257830025 2.5929e-05 deg
peri 279.006313297347 6.6002e-05 deg
M 326.6960471316855 6.1592e-05 deg
tp 2459177.580841683471
(2020-Nov-24.08084168)
0.00032767 TDB
period 1914.160257736267
5.24
1.3635e-05
3.733e-08
d
yr
n .1880720271696294 1.3397e-09 deg/d
Q 3.1259160037865 1.4844e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2487  
   data-arc span      24968 days (68.36 yr)  
   first obs. used      1952-01-31  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41609  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:46:06  

Additional Information
 Earth MOID = 1.92018 au 
 Jupiter MOID = 1.95711 au 
 T_jup = 3.228 
[ 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 11.3   n/a MPO384773  
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. 2019-August); 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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