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JPL Small-Body Database Browser
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27072 Aggarwal (1998 SS117)
Classification: Main-belt Asteroid          SPK-ID: 2027072
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1562750986032536 2.7029e-08  
a 2.332365318755256 7.6534e-09 au
q 1.967874698587969 6.161e-08 au
i 2.648824620076554 3.67e-06 deg
node 303.6752829094925 7.105e-05 deg
peri 306.9929905471988 7.217e-05 deg
M 140.6708955916263 1.2707e-05 deg
tp 2458492.112292447761
(2019-Jan-08.61229245)
4.581e-05 TDB
period 1301.047910081698
3.56
6.4038e-06
1.753e-08
d
yr
n .2767000332657958 1.3619e-09 deg/d
Q 2.696855938922542 8.8494e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1755  
   data-arc span      11776 days (32.24 yr)  
   first obs. used      1987-09-02  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5034  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:34:23  

Additional Information
 Earth MOID = .955021 au 
 Jupiter MOID = 2.34482 au 
 T_jup = 3.552 
[ 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 14.6   n/a MPO347725  
diameter diameter 7.596 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.121 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.053   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27072 Aggarwal           Discovered 1998 Sept. 26 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Amol Aggarwal (b. 1993) was a finalist in the 2011 Intel Science Talent Search, a science competition for high-school seniors, for his mathematical sciences project. He attends the Saratoga High School, Saratoga, California, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110319/MPCPages.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 1998 SS117 = 1987 RD4 = 1991 TD5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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