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 ]  
18385 (1992 EG31)
Classification: Main-belt Asteroid          SPK-ID: 2018385
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .09783162032174234 4.2439e-08  
a 3.037278999960693 1.8568e-08 au
q 2.740137074025337 1.3289e-07 au
i 10.44156405864692 4.5704e-06 deg
node 162.5795718530704 2.2524e-05 deg
peri 182.2832916923079 3.1057e-05 deg
M 300.4456845214951 2.3485e-05 deg
tp 2459320.342516950680
(2021-Apr-15.84251695)
0.00012749 TDB
period 1933.416666401006
5.29
1.773e-05
4.854e-08
d
yr
n .1861988707639149 1.7075e-09 deg/d
Q 3.334420925896048 2.0385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1271  
   data-arc span      11202 days (30.67 yr)  
   first obs. used      1989-10-03  
   last obs. used      2020-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54083  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:21:50  

Additional Information
 Earth MOID = 1.7326 au 
 Jupiter MOID = 2.07915 au 
 T_jup = 3.209 
[ 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 13.8   n/a MPO296285  
diameter diameter 5.626 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.222   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18385 (1992 EG31)          Discovered 1992-Mar-01 by UESAC at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1947-Nov-06 05:48 00:02 Ceres 0.0382387593159576 0.0382285740236908 0.0382489462155104 5.08565593293041 5.08565376052443 2432495.741751237 2.28219584876474 639.135140712729 50.7812608531093 37.8698082996858 69146.6625334882 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 18:22:06 2020-Jun-23 18:22

Alternate Designations
 1992 EG31 = 1989 TE15 = 1998 HZ113 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-22 01:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin