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15507 Rengarajan (1999 RC166)
Classification: Main-belt Asteroid          SPK-ID: 2015507
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1428378359725105 3.5457e-08  
a 2.395497140391394 7.9058e-09 au
q 2.053329512779551 8.2856e-08 au
i 5.657167803418913 3.8156e-06 deg
node 147.257475325691 3.6336e-05 deg
peri 356.5711240893418 3.8856e-05 deg
M 61.65525596023237 1.3138e-05 deg
tp 2458768.568617740985
(2019-Oct-12.06861774)
4.9251e-05 TDB
period 1354.228383499047
3.71
6.704e-06
1.835e-08
d
yr
n .2658340383250823 1.316e-09 deg/d
Q 2.737664768003238 9.0351e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1889  
   data-arc span      14196 days (38.87 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:13  

Additional Information
 Earth MOID = 1.0657 au 
 Jupiter MOID = 2.27082 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457199.5 (2015-Jun-26.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1432467694249596 3.5574e-08  
q 2.052178992835771 8.3217e-08 au
tp 2457415.234630949297
(2016-Jan-27.73463095)
4.8429e-05 TDB
node 147.2763923183098 3.6327e-05 deg
peri 356.8687541687763 3.881e-05 deg
i 5.65793598107774 3.8162e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1889  
   data-arc span      14196 days (38.87 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:13  

Additional Information
 Jupiter MOID = 2.27082 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.265489966388788E-15 -2.951595837102303E-15 7.004220940700062E-13 2.339499978564925E-15 1.830832598123337E-13 -1.315143543885049E-15
q -2.951595837102303E-15 6.924995706864852E-15 -1.682399624890348E-12 -4.993971673383285E-15 -4.427280339915867E-13 3.283719367679948E-15
tp 7.004220940700062E-13 -1.682399624890348E-12 2.345390213658631E-9 -2.605450670564724E-12 6.741992996270653E-10 -2.407502870180194E-12
node 2.339499978564925E-15 -4.993971673383285E-15 -2.605450670564724E-12 1.319616623019843E-9 -1.313616514425106E-9 5.721565415438822E-11
peri 1.830832598123337E-13 -4.427280339915867E-13 6.741992996270653E-10 -1.313616514425106E-9 1.506199665648625E-9 -5.764361957550444E-11
i -1.315143543885049E-15 3.283719367679948E-15 -2.407502870180194E-12 5.721565415438822E-11 -5.764361957550444E-11 1.45633899897794E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO358781  
diameter diameter 7.850 km 2.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.040   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

15507 Rengarajan           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Michelle Rengarajan (b. 1985) was named a finalist in the 2003 Intel Science Talent Search, a science competition for high school seniors, for her biochemistry project. She attends the Westridge School, Pasadena, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030216/MPCPages.arcLast Updated: 2011-11-22

Alternate Designations
 1999 RC166 = 1981 UC22 = 1998 KO40 = 1999 RF79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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