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74779 (1999 RF241)
Classification: Mars-crossing Asteroid          SPK-ID: 2074779
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3080252918081958 4.577e-08  
a 2.353685128485596 1.3475e-08 au
q 1.628690579959209 1.0723e-07 au
i 23.90012496200902 7.406e-06 deg
node 71.24100086822401 1.8078e-05 deg
peri 44.9027384623888 2.3492e-05 deg
M 85.87341873657927 1.529e-05 deg
tp 2458285.886594191152
(2018-Jun-16.38659419)
5.4635e-05 TDB
period 1318.927646733366
3.61
1.1326e-05
3.101e-08
d
yr
n .2729490134592481 2.3439e-09 deg/d
Q 3.078679677011983 1.7625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      779  
   data-arc span      9662 days (26.45 yr)  
   first obs. used      1992-11-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48437  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:42:01  

Additional Information
 Earth MOID = .703447 au 
 Jupiter MOID = 2.31924 au 
 T_jup = 3.381 
[ 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 14.5   n/a MPO436306  
diameter diameter 2.769 km 0.377 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 6.189 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
geometric albedo albedo 0.425   0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

74779 (1999 RF241)          Discovered 1999-Sep-11 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RF241 = 1992 WB8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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