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91453 (1999 RA49)
Classification: Main-belt Asteroid          SPK-ID: 2091453
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1872208664117105 4.8424e-08  
a 2.734172675070508 1.9347e-08 au
q 2.222278497924584 1.3362e-07 au
i 13.95068895448615 5.7795e-06 deg
node 145.8600746437007 1.6967e-05 deg
peri 219.8794012477477 2.0909e-05 deg
M 181.2329702252433 1.5637e-05 deg
tp 2459820.515871990902
(2022-Aug-29.01587199)
7.7409e-05 TDB
period 1651.343171549468
4.52
1.7527e-05
4.799e-08
d
yr
n .2180043531849344 2.3138e-09 deg/d
Q 3.246066852216433 2.2969e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      8480 days (23.22 yr)  
   first obs. used      1997-02-01  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55879  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:41:12  

Additional Information
 Earth MOID = 1.23646 au 
 Jupiter MOID = 2.24332 au 
 T_jup = 3.285 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457156.5 (2015-May-14.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846452221079606 4.8185e-08  
q 2.233042845135994 1.3268e-07 au
tp 2456514.781451847708
(2013-Aug-10.28145185)
6.0617e-05 TDB
node 145.8898855694773 1.6945e-05 deg
peri 219.8427477625108 2.1029e-05 deg
i 13.94985132143871 5.7786e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      8480 days (23.22 yr)  
   first obs. used      1997-02-01  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55879  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:41:12  

Additional Information
 Jupiter MOID = 2.24332 au 
 T_jup = 3.285 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.321825615725822E-15 -6.347497564263861E-15 -5.731376975488444E-13 9.374517176253568E-15 -1.530515155824819E-13 -3.784084268936369E-16
q -6.347497564263861E-15 1.760290436612635E-14 1.837922727805423E-12 -2.797569513081486E-14 4.852900992276668E-13 1.31103671856744E-15
tp -5.731376975488444E-13 1.837922727805423E-12 3.674436322475851E-9 -7.168022238518813E-12 7.68396682441301E-10 -7.496362676700796E-13
node 9.374517176253568E-15 -2.797569513081486E-14 -7.168022238518813E-12 2.871198651308346E-10 -2.79925373614817E-10 1.874779359734179E-11
peri -1.530515155824819E-13 4.852900992276668E-13 7.68396682441301E-10 -2.79925373614817E-10 4.422200369395594E-10 -1.830177091653387E-11
i -3.784084268936369E-16 1.31103671856744E-15 -7.496362676700796E-13 1.874779359734179E-11 -1.830177091653387E-11 3.339262666044168E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO325093  

91453 (1999 RA49)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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