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 ]  
1173 Anchises (1930 UB)
Classification: Jupiter Trojan          SPK-ID: 2001173
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1371364770309408 5.6423e-08  
a 5.302202257483387 8.6009e-08 AU
q 4.575076919386614 3.1583e-07 AU
i 6.915328675844535 5.935e-06 deg
node 283.9046734612462 5.2803e-05 deg
peri 41.08982861737271 5.7589e-05 deg
M 86.75704380398282 2.1979e-05 deg
tp 2455925.805300770856
(2011-Dec-30.30530077)
0.00027171 JED
period 4459.466053230489
12.21
0.00010851
2.971e-07
d
yr
n .08072715336384539 1.9642e-09 deg/d
Q 6.029327595580161 9.7804e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1281  
   data-arc span      30843 days (84.44 yr)  
   first obs. used      1930-10-17  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56745  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:03:58  

Additional Information
 Earth MOID = 3.56766 AU 
 T_jup = 2.967 
[ 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 8.89 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 8
diameter diameter 126.27 km 10.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 8
rotation period rot_per 11.60 h n/a LCDB (Rev. 2015-May); Warner et al., 2009 Published Reference List:
[French, L.M. (1987) Icarus 72, 325-341.]
geometric albedo albedo 0.0308   0.006 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 8
B-V BV .691 mag .045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=1.24, mean=5.53, max.=8.11) deg.
U-B UB .266 mag .080 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=1.24, mean=5.53, max.=8.11) deg.
Tholen spectral type spec_T P   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

1173 Anchises (1930 UB)          Discovered 1930-Oct-17 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jul-01 19:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin