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74176 (1998 RF17)
Classification: Main-belt Asteroid          SPK-ID: 2074176
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1812893824669302 3.9497e-08  
a 2.610268326076728 1.2505e-08 au
q 2.13705439316929 1.041e-07 au
i 2.309402602240193 4.0035e-06 deg
node 282.0003972266771 0.00011943 deg
peri 17.18528854604916 0.00012057 deg
M 79.26990804608582 1.3433e-05 deg
tp 2458661.318613775623
(2019-Jun-26.81861378)
5.826e-05 TDB
period 1540.373920577609
4.22
1.1069e-05
3.031e-08
d
yr
n .2337094878008629 1.6794e-09 deg/d
Q 3.083482258984165 1.4772e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7762 days (21.25 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54978  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:43  

Additional Information
 Earth MOID = 1.12148 au 
 Jupiter MOID = 2.13314 au 
 T_jup = 3.385 
[ 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 15.8   n/a MPO436302  
diameter diameter 2.072 km 0.377 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.149   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74176 (1998 RF17)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RF17 = 2000 AC224 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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