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91445 (1999 RC19)
Classification: Main-belt Asteroid          SPK-ID: 2091445
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2227163383054159 4.1589e-08  
a 3.099944979286138 2.4165e-08 au
q 2.409536584551272 1.2651e-07 au
i 6.99012841606547 4.4774e-06 deg
node 158.8498649037304 4.0711e-05 deg
peri 286.1935900942982 4.2022e-05 deg
M 222.877629850897 1.2409e-05 deg
tp 2459759.838143151132
(2022-Jun-29.33814315)
7.3198e-05 TDB
period 1993.560432460157
5.46
2.331e-05
6.382e-08
d
yr
n .1805814331676624 2.1115e-09 deg/d
Q 3.790353374021005 2.9547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      892  
   data-arc span      7291 days (19.96 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54498  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:30:15  

Additional Information
 Earth MOID = 1.4371 au 
 Jupiter MOID = 1.52235 au 
 T_jup = 3.172 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457110.5 (2015-Mar-29.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2259313571028071 4.2597e-08  
q 2.392039199244196 1.3129e-07 au
tp 2457756.531451893492
(2017-Jan-03.03145189)
6.0221e-05 TDB
node 159.9321622081574 4.1046e-05 deg
peri 283.3389597074079 4.2169e-05 deg
i 6.96355676306472 4.4699e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      892  
   data-arc span      7291 days (19.96 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54498  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:30:15  

Additional Information
 Jupiter MOID = 1.52235 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.814465585965799E-15 -5.547197905763666E-15 -1.146230187212185E-13 -3.711213066254982E-15 -4.644678707518567E-14 -1.184608597711707E-16
q -5.547197905763666E-15 1.723813895127792E-14 8.120330519762931E-13 7.996921607644854E-15 1.986130986005598E-13 3.34128033436464E-16
tp -1.146230187212185E-13 8.120330519762931E-13 3.626622704388049E-9 1.10729402227623E-12 6.143608271890599E-10 -1.652563009929179E-13
node -3.711213066254982E-15 7.996921607644854E-15 1.10729402227623E-12 1.684759209418572E-9 -1.671920665553645E-9 6.579185126509975E-12
peri -4.644678707518567E-14 1.986130986005598E-13 6.143608271890599E-10 -1.671920665553645E-9 1.778183272461517E-9 -6.570369613285051E-12
i -1.184608597711707E-16 3.34128033436464E-16 -1.652563009929179E-13 6.579185126509975E-12 -6.570369613285051E-12 1.99802317717629E-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 14.2   n/a MPO493511  
diameter diameter 4.819 km 0.651 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.174   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91445 (1999 RC19)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 RC19 = 2001 DR96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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