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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
46875 (1998 QD104)
Classification: Main-belt Asteroid          SPK-ID: 2046875
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2268146103141256 4.9065e-08  
a 2.546133570562013 1.0165e-08 au
q 1.968633276947277 1.2729e-07 au
i 8.209731325426436 6.3209e-06 deg
node 137.1116848084438 2.1285e-05 deg
peri 324.1360727883715 2.6652e-05 deg
M 310.5471790595399 1.2895e-05 deg
tp 2458804.349087077177
(2019-Nov-16.84908708)
5.3003e-05 TDB
period 1483.953189164644
4.06
8.8865e-06
2.433e-08
d
yr
n .242595253427538 1.4528e-09 deg/d
Q 3.123633864176749 1.247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1807  
   data-arc span      15002 days (41.07 yr)  
   first obs. used      1978-11-01  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51244  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:20:33  

Additional Information
 Earth MOID = .992045 au 
 Jupiter MOID = 2.0533 au 
 T_jup = 3.392 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456734.5 (2014-Mar-18.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .225943164826074 4.9525e-08  
q 1.971549714070216 1.2856e-07 au
tp 2457321.181578041409
(2015-Oct-25.68157804)
5.5004e-05 TDB
node 137.1502447182233 2.1269e-05 deg
peri 324.2629403916204 2.665e-05 deg
i 8.211364686612608 6.3228e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1807  
   data-arc span      15002 days (41.07 yr)  
   first obs. used      1978-11-01  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51244  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:20:33  

Additional Information
 Jupiter MOID = 2.0533 au 
 T_jup = 3.392 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.452717233393078E-15 -6.355482797600952E-15 2.141540633913738E-12 -4.24839723588796E-14 6.270883966793983E-13 -1.307398823302053E-14
q -6.355482797600952E-15 1.652669515643947E-14 -5.578196126861394E-12 1.094009879365709E-13 -1.640241089327894E-12 3.371698375737127E-14
tp 2.141540633913738E-12 -5.578196126861394E-12 3.025480880844601E-9 -4.86408570681464E-11 8.890156475895382E-10 -1.537445199780615E-11
node -4.24839723588796E-14 1.094009879365709E-13 -4.86408570681464E-11 4.523550785304821E-10 -4.602531512256608E-10 3.745225162410016E-11
peri 6.270883966793983E-13 -1.640241089327894E-12 8.890156475895382E-10 -4.602531512256608E-10 7.102092903852008E-10 -4.116863315955071E-11
i -1.307398823302053E-14 3.371698375737127E-14 -1.537445199780615E-11 3.745225162410016E-11 -4.116863315955071E-11 3.997811945757723E-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 13.8   n/a MPO459175  
diameter diameter 4.514 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 88.734 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.315   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46875 (1998 QD104)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QD104 = 1978 VZ16 = 1986 RV3 = 1999 VG77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-13 06:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin