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91443 (1999 RH17)
Classification: Main-belt Asteroid          SPK-ID: 2091443
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05038333855771271 3.8054e-08  
a 2.746006096912786 1.7606e-08 au
q 2.607653142050486 1.0655e-07 au
i 3.528306558389037 5.2807e-06 deg
node 289.7007869354526 9.0327e-05 deg
peri 139.5955881376873 0.00011238 deg
M 123.0031663187548 6.7036e-05 deg
tp 2458432.609683961137
(2018-Nov-10.10968396)
0.00030811 TDB
period 1662.075212309545
4.55
1.5985e-05
4.376e-08
d
yr
n .2165966963069981 2.0831e-09 deg/d
Q 2.884359051775085 1.8493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      691  
   data-arc span      10345 days (28.32 yr)  
   first obs. used      1991-12-31  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53287  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:41:12  

Additional Information
 Earth MOID = 1.62316 au 
 Jupiter MOID = 2.26354 au 
 T_jup = 3.343 
[ show covariance matrix ]

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 MPO337940  
diameter diameter 3.326 km 0.444 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.211   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91443 (1999 RH17)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RH17 = 2000 YF57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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