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24007 (1999 RE91)
Classification: Main-belt Asteroid          SPK-ID: 2024007
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2196473177178325 3.5416e-08  
a 2.359449693978792 9.9792e-09 au
q 1.841202897406189 8.6014e-08 au
i 2.993514160536365 4.1359e-06 deg
node 113.5707509630401 7.8979e-05 deg
peri 281.8091524516537 7.9691e-05 deg
M 288.7268272712562 1.1781e-05 deg
tp 2459462.582547291809
(2021-Sep-05.08254729)
4.4357e-05 TDB
period 1323.776021366884
3.62
8.3983e-06
2.299e-08
d
yr
n .2719493284281406 1.7253e-09 deg/d
Q 2.877696490551394 1.2171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      14176 days (38.81 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58215  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:34:44  

Additional Information
 Earth MOID = .849781 au 
 Jupiter MOID = 2.55553 au 
 T_jup = 3.517 
[ 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 15.7   n/a MPO474081  
diameter diameter 1.624 km 0.350 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.63 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.422   0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24007 (1999 RE91)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RE91 = 1981 UL17 = 1997 ET34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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