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 ]  
148 Gallia
Classification: Main-belt Asteroid          SPK-ID: 2000148
[ 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 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1870509994290771 3.2834e-08  
a 2.771509056359482 6.5673e-09 au
q 2.253095517440703 9.0639e-08 au
i 25.28888452671787 4.6884e-06 deg
node 145.0073662664792 7.3716e-06 deg
peri 252.7594779195549 1.4594e-05 deg
M 4.082243219802259 1.4203e-05 deg
tp 2458581.389622960566
(2019-Apr-07.88962296)		 6.6462e-05 TDB
period 1685.283155306364
4.61		 5.9901e-06
1.64e-08		 d
yr
n .2136139549407389 7.5926e-10 deg/d
Q 3.289922595278262 7.7957e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2948  
   data-arc span      51308 days (140.47 yr)  
   first obs. used      1879-06-14  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4532  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:38:15  

Additional Information
 Earth MOID = 1.37349 au 
 Jupiter MOID = 2.45932 au 
 T_jup = 3.174 
[ 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 7.63   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 14
diameter diameter 97.75 km 3.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 14
rotation period rot_per 20.664 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Surdej, A.; Surdej, J. (1979) Astron. Astrophys. Suppl. Ser. 37, 471-474.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2007) Minor Planet Bull. 34, 104-107.]
[Warner, B.D. (2011) http://www.minorplanetobserver.com/PDO/PDOLightcurves.htm]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.1640   0.013 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 14
B-V BV 0.858   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=9.40, mean=14.81, max.=20.46) deg.
U-B UB 0.423   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=9.40, mean=14.81, max.=20.46) deg.
Tholen spectral type spec_T GU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 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)

148 Gallia          Discovered 1875-Aug-07 by Henry, Prosper at Paris
In their cooperative program it will probably never be known which of the Henry brothers discovered which planet. With strict impartiality, these discoveries were announced as having been made alternatively by Prosper and by Paul.
Note: "planet" implies "minor planet"
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
[ 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-16 11:35 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin