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 ]  
892 Seeligeria (A918 KC)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000892
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1043748087693073 3.142e-08  
a 3.227824346545789 1.3881e-08 au
q 2.890920797634158 1.0405e-07 au
i 21.32682554855021 3.897e-06 deg
node 175.8937483917167 9.6083e-06 deg
peri 286.2207505017645 2.0791e-05 deg
M 356.7579006661194 1.8583e-05 deg
tp 2459219.575989846395
(2021-Jan-05.07598985)
0.00010935 TDB
period 2118.181967139908
5.80
1.3664e-05
3.741e-08
d
yr
n .1699570695930779 1.0963e-09 deg/d
Q 3.564727895457419 1.533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3238  
   data-arc span      37544 days (102.79 yr)  
   first obs. used      1918-05-31  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39541  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:35:42  

Additional Information
 Earth MOID = 1.98733 au 
 Jupiter MOID = 1.66432 au 
 T_jup = 3.071 
[ 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 9.71   n/a E2021B10  
diameter diameter 74.481 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 41.39 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:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.055   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

892 Seeligeria (A918 KC)          Discovered 1918-May-31 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A918 KC = 1952 HY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-16 02:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin