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 ]  
39876 (1998 DB38)
Classification: Main-belt Asteroid          SPK-ID: 2039876
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1058512224967857 5.1746e-08  
a 2.375082162850991 9.0417e-09 au
q 2.123676812382904 1.2503e-07 au
i 2.179542541760835 4.83e-06 deg
node 206.6120716097033 0.00010729 deg
peri 316.9274615902082 0.00010869 deg
M 22.39349130111132 1.6321e-05 deg
tp 2458917.335938367788
(2020-Mar-08.83593837)
6.0643e-05 TDB
period 1336.953750758398
3.66
7.6344e-06
2.09e-08
d
yr
n .2692688507704827 1.5376e-09 deg/d
Q 2.626487513319078 9.9987e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1130  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:46:57  

Additional Information
 Earth MOID = 1.13183 au 
 Jupiter MOID = 2.34972 au 
 T_jup = 3.533 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457223.5 (2015-Jul-20.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062608839867231 5.1883e-08  
q 2.122576673528212 1.2539e-07 au
tp 2457581.492309893726
(2016-Jul-11.99230989)
6.1048e-05 TDB
node 206.6389259054686 0.00010738 deg
peri 317.2907777675652 0.00010875 deg
i 2.178313467279841 4.8301e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1130  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:46:57  

Additional Information
 Jupiter MOID = 2.34972 au 
 T_jup = 3.533 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.691888843116764E-15 -6.492867481304353E-15 7.887480629884052E-13 7.713482130783272E-15 2.633473280674669E-13 -1.466002140447514E-15
q -6.492867481304353E-15 1.572254755268726E-14 -1.969071798318767E-12 -1.873304691192497E-14 -6.598560823835302E-13 3.514780998372528E-15
tp 7.887480629884052E-13 -1.969071798318767E-12 3.726844946018213E-9 -2.205101018436907E-12 1.063661648467613E-9 8.208893688973131E-14
node 7.713482130783272E-15 -1.873304691192497E-14 -2.205101018436907E-12 1.153013633340115E-8 -1.152194176777953E-8 -2.199339275857165E-10
peri 2.633473280674669E-13 -6.598560823835302E-13 1.063661648467613E-9 -1.152194176777953E-8 1.1826067150595E-8 2.197919506766222E-10
i -1.466002140447514E-15 3.514780998372528E-15 8.208893688973131E-14 -2.199339275857165E-10 2.197919506766222E-10 2.332975012041536E-11

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 15.3   n/a MPO459139  
diameter diameter 5.037 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39876 (1998 DB38)          Discovered 1998-Feb-27 by JPL/GEODSS NEAT at Haleakala
Reference: 20020526/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
2058-Feb-10 03:50 < 00:01 Eunom 0.0234215628798435 0.0234153214068467 0.0234278051190936 6.11284850447773 6.11284840643072 2472769.659775554 0.38493335060165 377.758403762985 52.9104946290323 34.9496097062358 38670.3305790604 T 24 CATAB v2.0f-lin.ifort 2020-May-20 08:47:10 2020-May-20 08:47

Alternate Designations
 1998 DB38 = 2000 UT44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-10 22:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin