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19629 Serra (1999 RV31)
Classification: Main-belt Asteroid          SPK-ID: 2019629
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02438468789169863 3.0487e-08  
a 2.787899562375368 1.2954e-08 au
q 2.719917501673441 8.5952e-08 au
i 2.426730731920441 4.5511e-06 deg
node 12.43391277870095 7.9777e-05 deg
peri 254.1046456262648 0.0001343 deg
M 283.3303777385218 0.00011056 deg
tp 2459562.605344810031
(2021-Dec-14.10534481)
0.00052285 TDB
period 1700.255202602036
4.66
1.185e-05
3.244e-08
d
yr
n .2117329207104105 1.4757e-09 deg/d
Q 2.855881623077294 1.327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2032  
   data-arc span      14382 days (39.38 yr)  
   first obs. used      1981-10-30  
   last obs. used      2021-03-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49913  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:59:59  

Additional Information
 Earth MOID = 1.7035 au 
 Jupiter MOID = 2.14271 au 
 T_jup = 3.329 
[ 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 13.92   n/a E2021B10  
diameter diameter 4.702 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.265   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19629 Serra           Discovered 1999 Sept. 8 by A. Klotz at Guitalens.
Catalan astrophysicist Guy Serra (1947-2000) was an active pioneer in the field of infrared and submillimeter space astronomy throughout Europe. The discoverer received his doctorate under Serra's direction.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011130/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1999 RV31 = 1981 UC2 = 1998 KD64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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