Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
39502 (1981 EE36)
Classification: Main-belt Asteroid          SPK-ID: 2039502
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06086071595139154 4.6448e-08  
a 2.993280061659074 2.3718e-08 au
q 2.811106894063477 1.4988e-07 au
i 9.340759368560297 8.167e-06 deg
node 325.8101879068255 2.6396e-05 deg
peri 83.6627387596824 7.2646e-05 deg
M 335.0235629670292 6.781e-05 deg
tp 2459131.734324557882
(2020-Oct-09.23432456)
0.00035669 TDB
period 1891.557101538199
5.18
2.2483e-05
6.156e-08
d
yr
n .1903193933227027 2.2621e-09 deg/d
Q 3.175453229254671 2.5162e-08 au
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      14391 days (39.40 yr)  
   first obs. used      1981-03-06  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55089  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 03:34:38  

Additional Information
 Earth MOID = 1.84027 au 
 Jupiter MOID = 2.06431 au 
 T_jup = 3.232 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457259.5 (2015-Aug-25.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06023536705738225 4.8025e-08  
q 2.813560250534716 1.5507e-07 au
tp 2457219.503475466241
(2015-Jul-16.00347547)
0.00035179 TDB
node 326.0995073030595 2.6325e-05 deg
peri 79.85532617671102 7.2747e-05 deg
i 9.35122333996248 8.1769e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      14391 days (39.40 yr)  
   first obs. used      1981-03-06  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55089  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 03:34:38  

Additional Information
 Jupiter MOID = 2.06431 au 
 T_jup = 3.232 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.30640667033444E-15 -7.383086406913428E-15 -7.210327421746548E-12 1.030045096240767E-14 -1.325747259633845E-12 2.5383063979056E-16
q -7.383086406913428E-15 2.404690859394447E-14 2.347401090625392E-11 -3.571990681825653E-14 4.318830191014288E-12 7.307051653081331E-16
tp -7.210327421746548E-12 2.347401090625392E-11 1.237585149455154E-7 -1.350725456563455E-10 2.386551499824959E-8 1.554714165849028E-12
node 1.030045096240767E-14 -3.571990681825653E-14 -1.350725456563455E-10 6.930133771283011E-10 -7.090268477960087E-10 5.097302608364572E-11
peri -1.325747259633845E-12 4.318830191014288E-12 2.386551499824959E-8 -7.090268477960087E-10 5.292063832995946E-9 -5.025944352372265E-11
i 2.5383063979056E-16 7.307051653081331E-16 1.554714165849028E-12 5.097302608364572E-11 -5.025944352372265E-11 6.686240798254857E-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 MPO452717  

39502 (1981 EE36)          Discovered 1981-Mar-06 by Bus, S. J. at Siding Spring
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EE36 = 1996 DQ6 = 1999 VA48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-26 10:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin