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 ]  
1180 Rita (1931 GE)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001180
[ 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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .15773551572635 3.4946e-08  
a 3.996006660250571 2.7933e-08 au
q 3.365694488850018 1.5045e-07 au
i 7.199428601996416 4.1628e-06 deg
node 88.29239298225072 3.1487e-05 deg
peri 208.160561740224 3.4965e-05 deg
M 309.1983944459614 1.7153e-05 deg
tp 2459012.230148892570
(2020-Jun-11.73014889)		 0.00014026 TDB
period 2917.680494244571
7.99		 3.0593e-05
8.376e-08		 d
yr
n .1233856828087028 1.2937e-09 deg/d
Q 4.626318831651125 3.2339e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3146  
   data-arc span      41046 days (112.38 yr)  
   first obs. used      1907-04-04  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4467  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:15:41  

Additional Information
 Earth MOID = 2.35144 au 
 Jupiter MOID = .598186 au 
 T_jup = 3.019 
[ 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 9.14   n/a PDS3 (MPC 17261)  
diameter diameter 97 km n/a J.G. Williams (E-mail September 1990) based on assumed albedo of 0.048 for C-type
rotation period rot_per 14.849 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Gonano, M.; Di Martino, M.; Mottola, S.; Neukum, G. (1991) Adv. Space Res. 11, no. 12, 197-200.]
[Dahlgren, M.; Lahulla, J.F.; Lagerkvist, C.-I.; Lagerros, J.; et al. (1998) Icarus 133, 247-285.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 390-393.]
geometric albedo albedo 0.058   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
B-V BV 0.682   0.042 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.65, mean=13.11, max.=16.19) deg.
U-B UB 0.216   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.65, mean=11.92, max.=16.19) 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

1180 Rita (1931 GE)          Discovered 1931-Apr-09 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1931 GE = 1929 CM = 1953 AH = 1957 UF1 = A907 GG = A908 KA = A916 LA 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin