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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 ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230279134962881 3.9467e-08  
a 3.100080318987096 1.7322e-08 au
q 2.718683905671206 1.2644e-07 au
i 1.166973313944706 4.3764e-06 deg
node 40.53015793794029 0.00020481 deg
peri 203.1448459868581 0.0002057 deg
M 267.5733173451431 2.114e-05 deg
tp 2459712.361789712726
(2022-May-12.86178971)
0.00011887 TDB
period 1993.690988398772
5.46
1.671e-05
4.575e-08
d
yr
n .1805696078754577 1.5134e-09 deg/d
Q 3.481476732302986 1.9453e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1426  
   data-arc span      8153 days (22.32 yr)  
   first obs. used      1998-11-24  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55312  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:59:45  

Additional Information
 Earth MOID = 1.70419 au 
 Jupiter MOID = 1.53434 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456987.5 (2014-Nov-26.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262527738456548 3.92e-08  
q 2.707034867396775 1.2612e-07 au
tp 2457716.388290060806
(2016-Nov-23.88829006)
0.00010947 TDB
node 40.55899670515707 0.00020468 deg
peri 202.9211973029862 0.00020552 deg
i 1.168286226294209 4.3744e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1426  
   data-arc span      8153 days (22.32 yr)  
   first obs. used      1998-11-24  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55312  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:59:45  

Additional Information
 Jupiter MOID = 1.53434 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.536678023026526E-15 -4.910356545819291E-15 -1.553091753434081E-12 -9.397907926025182E-15 -2.080408191617393E-13 -7.024128888823234E-17
q -4.910356545819291E-15 1.590640148398537E-14 5.376065293780459E-12 3.297103766292808E-14 7.189296118299888E-13 2.550842526673628E-16
tp -1.553091753434081E-12 5.376065293780459E-12 1.198397238982903E-8 2.120825393719233E-11 2.052611788135055E-9 8.567617233991227E-13
node -9.397907926025182E-15 3.297103766292808E-14 2.120825393719233E-11 4.18922784205951E-8 -4.187985390474013E-8 -2.116424338942734E-10
peri -2.080408191617393E-13 7.189296118299888E-13 2.052611788135055E-9 -4.187985390474013E-8 4.223866454929703E-8 2.117398771032134E-10
i -7.024128888823234E-17 2.550842526673628E-16 8.567617233991227E-13 -2.116424338942734E-10 2.117398771032134E-10 1.913504706231144E-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 14.35   n/a MPCxxxxx  
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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