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49481 Gisellarubini (1999 BJ12)
Classification: Main-belt Asteroid          SPK-ID: 2049481
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230279124380015 3.957e-08  
a 3.100080318475893 1.7386e-08 au
q 2.71868390850367 1.2667e-07 au
i 1.166973128020089 4.4011e-06 deg
node 40.53015627128369 0.00020485 deg
peri 203.1448477865196 0.00020574 deg
M 267.5733173797553 2.114e-05 deg
tp 2459712.361789394433
(2022-May-12.86178939)
0.00011888 TDB
period 1993.690987905633
5.46
1.6771e-05
4.592e-08
d
yr
n .1805696079201216 1.519e-09 deg/d
Q 3.481476728448118 1.9524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1411  
   data-arc span      8147 days (22.31 yr)  
   first obs. used      1998-11-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:17:30  

Additional Information
 Earth MOID = 1.70419 au 
 Jupiter MOID = 1.53434 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456971.5 (2014-Nov-10.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .126319165273889 3.9293e-08  
q 2.70663645102812 1.2629e-07 au
tp 2457716.412654228341
(2016-Nov-23.91265423)
0.00010942 TDB
node 40.56117723712495 0.00020471 deg
peri 202.9389145058177 0.00020556 deg
i 1.16831147981684 4.3992e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1411  
   data-arc span      8147 days (22.31 yr)  
   first obs. used      1998-11-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:17:30  

Additional Information
 Jupiter MOID = 1.53434 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.543914941721229E-15 -4.928282272518562E-15 -1.551082326482587E-12 -9.404613817790748E-15 -2.085254457914607E-13 -7.191329942926402E-17
q -4.928282272518562E-15 1.594897758122181E-14 5.365724955339909E-12 3.28575925004591E-14 7.195145379423337E-13 2.62935041675426E-16
tp -1.551082326482587E-12 5.365724955339909E-12 1.197211188958422E-8 2.113046395094143E-11 2.051137663143532E-9 8.44571504083678E-13
node -9.404613817790748E-15 3.28575925004591E-14 2.113046395094143E-11 4.190776329635495E-8 -4.189533150743781E-8 -2.09593012899777E-10
peri -2.085254457914607E-13 7.195145379423337E-13 2.051137663143532E-9 -4.189533150743781E-8 4.225403743076504E-8 2.096885447187494E-10
i -7.191329942926402E-17 2.62935041675426E-16 8.44571504083678E-13 -2.09593012899777E-10 2.096885447187494E-10 1.935255603609375E-11

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 14.33   n/a E2021B10  
diameter diameter 6.997 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49481 Gisellarubini           Discovered 1999 Jan. 24 by M. M. M. Santangelo at the Monte Agliale Astronomical Observatory.
Gisella Rubini (b. 1959) lives in Lucca, Italy. She is the girlfriend of the discoverer, and sometimes she helps him at the telescope in the nearby Monte Agliale astronomical observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1999 BJ12 = 2000 HS12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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