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 ]  
31257 (1998 DG35)
Classification: Main-belt Asteroid          SPK-ID: 2031257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .10737641652056 4.3848e-08  
a 2.960695504716014 1.3215e-08 au
q 2.642786631011078 1.3408e-07 au
i 10.1293426417425 4.7795e-06 deg
node 8.428552529851318 1.9832e-05 deg
peri 301.8483427022152 3.2011e-05 deg
M 36.57124121540074 2.171e-05 deg
tp 2459011.471954904056
(2020-Jun-10.97195490)
0.00011258 TDB
period 1860.754351588231
5.09
1.2458e-05
3.411e-08
d
yr
n .1934699223961106 1.2953e-09 deg/d
Q 3.27860437842095 1.4634e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2456  
   data-arc span      9223 days (25.25 yr)  
   first obs. used      1995-10-20  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42729  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:42:26  

Additional Information
 Earth MOID = 1.64449 au 
 Jupiter MOID = 2.07482 au 
 T_jup = 3.234 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.52   n/a E2021B10  
diameter diameter 5.766 km 0.287 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.66308 h n/a LCDB (Rev. 2020-October); 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:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.279   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

31257 (1998 DG35)          Discovered 1998-Feb-27 by Elst, E. W. at La Silla
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DG35 = 1995 UJ46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-09 05:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin