Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
74 Galatea
Classification: Main-belt Asteroid          SPK-ID: 2000074
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 76 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2399932171345281 3.0038e-08  
a 2.778331280909276 7.2629e-09 AU
q 2.111550618538365 8.3024e-08 AU
i 4.077264550845006 3.4932e-06 deg
node 197.2784442811893 5.7283e-05 deg
peri 174.16498138273 5.7909e-05 deg
M 294.7706008824133 8.5105e-06 deg
tp 2457306.989320942805
(2015-Oct-11.48932094)
4.0579e-05 JED
period 1691.509611187905
4.63
6.6327e-06
1.816e-08
d
yr
n .2128276408356798 8.3454e-10 deg/d
Q 3.445111943280188 9.0059e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1765  
   data-arc span      55347 days (151.53 yr)  
   first obs. used      1864-01-30  
   last obs. used      2015-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57238  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 13:53:53  

Additional Information
 Earth MOID = 1.11169 AU 
 T_jup = 3.288 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.66 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
diameter diameter 118.71 km 2.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
rotation period rot_per 17.268 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2008) Minor Planet Bul. 35, 135-138.]
[Pilcher, F. (2009) Minor Planet Bul. 36, 133-136.]
geometric albedo albedo 0.0431   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
B-V BV .686 mag .027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=2.33, mean=4.63, max.=6.93) deg.
U-B UB .320 mag .088 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=2.33, mean=4.63, max.=6.93) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B C   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)

74 Galatea          Discovered 1862-Aug-29 by Tempel, E. W. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A908 OC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Sep-03 08:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin