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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
378 Holmia (A893 XA)
Classification: Main-belt Asteroid          SPK-ID: 2000378
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1307049279739803 1.7609e-08  
a 2.774905974976579 8.5976e-09 au
q 2.412212089382697 4.7932e-08 au
i 7.007039055939646 8.3428e-07 deg
node 232.4385488496991 8.8848e-06 deg
peri 157.3642542351752 1.1976e-05 deg
M 235.1476690031384 1.3046e-05 deg
tp 2459982.051353578104
(2023-Feb-06.55135358)
6.2717e-05 TDB
period 1688.382472357815
4.62
7.8467e-06
2.148e-08
d
yr
n .2132218297061935 9.9095e-10 deg/d
Q 3.13759986057046 9.7213e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3403  
   data-arc span      46574 days (127.51 yr)  
   first obs. used      1894-02-02  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41356  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:33:05  

Additional Information
 Earth MOID = 1.419 au 
 Jupiter MOID = 2.29818 au 
 T_jup = 3.312 
[ 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 9.88   n/a E2021B10  
diameter diameter 27.831 km 0.362 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.450 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Dotto, E.; Rotundi, A.; De Sanctis, M.C. (1992) in Physical Properties of Small Solar System Bodies. A. Brahic, J.-C. Gerard, J. Surdej, eds. Universite de Liege, Institut d'Astrophysique, Liege, p. 211.]
[Di Martino, M.; Dotto, E.; Barucci, M.A.; Fulchignoni, M.; Rotundi, A. (1994) Icarus 109, 210-218.]
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.339   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.874   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=3.82 deg.
U-B UB 0.424   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=3.82 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

378 Holmia (A893 XA)          Discovered 1893-Dec-06 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A893 XA = 1953 XS1 = 1960 FJ = 1962 TP = 1962 UC = 1979 KP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-20 18:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin