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18077 Dianeingrao (2000 EM148)
Classification: Main-belt Asteroid          SPK-ID: 2018077
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1564493340578169 1.9583e-08  
a 2.273670673521504 6.7915e-09 au
q 1.917956410782277 4.4262e-08 au
i 7.760800513762775 4.1353e-07 deg
node 12.7322060878857 4.0152e-06 deg
peri 261.4154485490824 5.1377e-06 deg
M 311.4738937812313 5.6093e-06 deg
tp 2459369.296217663674
(2021-Jun-03.79621766)
2.0076e-05 TDB
period 1252.246328707487
3.43
5.6107e-06
1.536e-08
d
yr
n .2874833742747531 1.2881e-09 deg/d
Q 2.629384936260731 7.854e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2351  
   data-arc span      16360 days (44.79 yr)  
   first obs. used      1976-04-01  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47467  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:22:06  

Additional Information
 Earth MOID = .919011 au 
 Jupiter MOID = 2.50931 au 
 T_jup = 3.582 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457068.5 (2015-Feb-15.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1568431007288229 1.9549e-08  
q 1.917323164361107 4.4211e-08 au
tp 2456864.239242754900
(2014-Jul-25.73924275)
1.3756e-05 TDB
node 12.75565260808662 4.0144e-06 deg
peri 261.3964929376158 5.1361e-06 deg
i 7.762224204374444 4.1341e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2351  
   data-arc span      16360 days (44.79 yr)  
   first obs. used      1976-04-01  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47467  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:22:06  

Additional Information
 Jupiter MOID = 2.50931 au 
 T_jup = 3.582 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.821603196871721E-16 -8.571208370117892E-16 7.715280078463607E-14 2.285205176434287E-16 7.307016997588701E-16 8.025900180109266E-17
q -8.571208370117892E-16 1.954621037575477E-15 -1.529711892038237E-13 -5.964881195807884E-16 5.645700624279563E-15 -1.8671803536183E-16
tp 7.715280078463607E-14 -1.529711892038237E-13 1.892241972956681E-10 1.309021537660186E-12 4.217630820692822E-11 -9.962207915487298E-14
node 2.285205176434287E-16 -5.964881195807884E-16 1.309021537660186E-12 1.611526773966414E-11 -1.555802971875003E-11 7.065369595344534E-13
peri 7.307016997588701E-16 5.645700624279563E-15 4.217630820692822E-11 -1.555802971875003E-11 2.6379453491514E-11 -7.339048038066133E-13
i 8.025900180109266E-17 -1.8671803536183E-16 -9.962207915487298E-14 7.065369595344534E-13 -7.339048038066133E-13 1.709085877274393E-13

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 13.61   n/a E2021B10  
diameter diameter 4.583 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.278   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18077 Dianeingrao           Discovered 2000 Mar. 4 by the Catalina Sky Survey.
Diane L. Ingrao (b. 1951) served as Secretary of the Warren Astronomical Society (Detroit, Michigan) from 1969-1977. She has been active in many of their programs since and has been an avid solar eclipse chaser. Professionally, she works in elder healthcare in Michigan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120831/MPCPages.arcLast Updated: 2012-09-04

[ show close-approach data ]
Alternate Designations
 2000 EM148 = 1976 GR1 = 1987 SP22 = 1987 SV13 = 1998 XC33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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