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 ]  
891 Gunhild (A918 KB)
Classification: Main-belt Asteroid          SPK-ID: 2000891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 83 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02979217269976737 3.7533e-08  
a 2.859106833966763 1.1103e-08 au
q 2.77392782940214 1.0613e-07 au
i 13.55798339216139 3.7674e-06 deg
node 105.8605889415034 1.6951e-05 deg
peri 293.1916583614461 6.5914e-05 deg
M 150.2526791418839 6.4846e-05 deg
tp 2457863.506383684436
(2017-Apr-20.00638368)
0.00031656 TDB
period 1765.810123246208
4.83
1.0286e-05
2.816e-08
d
yr
n .2038724295782084 1.1875e-09 deg/d
Q 2.944285838531386 1.1433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2503  
   data-arc span      36981 days (101.25 yr)  
   first obs. used      1918-05-18  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40987  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:13:09  

Additional Information
 Earth MOID = 1.8135 au 
 Jupiter MOID = 2.25044 au 
 T_jup = 3.261 
[ 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 10.0   n/a MPO347520  
diameter diameter 55.747 km 0.321 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.892 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Garceran, A.C.; Aznar, A.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 92-97.]
geometric albedo albedo 0.065   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

891 Gunhild (A918 KB)          Discovered 1918-May-17 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1929-Nov-22 05:57 < 00:01 Pallas 0.0241004527125917 0.024092393937515 0.0241085115122356 10.3575820875754 10.3575817046387 2425937.747810484 0.671318959471228 403.48770817809 25.8821352831992 -5.47337580632182 15972.7547337933 T 83 CATAB v2.0f-lin.ifort 2019-Sep-23 19:13:20 2019-Sep-23 19:13

Alternate Designations
 A918 KB = 1977 FH = 1999 CF154 = A915 VE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-13 21:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin