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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 ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2229140758914816 3.8413e-08  
a 3.090178796740614 2.1362e-08 au
q 2.40133444592573 1.1934e-07 au
i 7.021827810981522 4.1173e-06 deg
node 158.7063021179172 3.6322e-05 deg
peri 287.2315371745965 3.7626e-05 deg
M 293.4753784711627 1.2861e-05 deg
tp 2459763.151740539013
(2022-Jul-02.65174054)
7.3087e-05 TDB
period 1984.146975369523
5.43
2.0574e-05
5.633e-08
d
yr
n .1814381719040518 1.8813e-09 deg/d
Q 3.779023147555499 2.6123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      962  
   data-arc span      7733 days (21.17 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53664  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:45:53  

Additional Information
 Earth MOID = 1.42898 au 
 Jupiter MOID = 1.52915 au 
 T_jup = 3.175 
[ 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 14.30   n/a E2021B10  
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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