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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3088310475105654 4.2633e-08  
a 2.353773550597097 1.3272e-08 au
q 1.626855199363533 9.8903e-08 au
i 23.87049602346151 7.1622e-06 deg
node 71.19781616047945 1.2013e-05 deg
peri 45.13244354101047 1.7058e-05 deg
M 194.6777675402189 1.4809e-05 deg
tp 2459606.223195593084
(2022-Jan-26.72319559)
5.7803e-05 TDB
period 1319.001970691142
3.61
1.1156e-05
3.054e-08
d
yr
n .2729336331555018 2.3085e-09 deg/d
Q 3.080691901830661 1.7371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      914  
   data-arc span      9741 days (26.67 yr)  
   first obs. used      1992-11-26  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46509  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:21:54  

Additional Information
 Earth MOID = .70212 au 
 Jupiter MOID = 2.31795 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 6.1895 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46-4, in press.]
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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