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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1583409033504964 3.4746e-08  
a 4.004756126936633 3.2708e-08 au
q 3.370639424099052 1.5221e-07 au
i 7.193142397938069 4.1543e-06 deg
node 88.27877371207741 3.1435e-05 deg
peri 206.9128227937033 3.482e-05 deg
M 359.4567465428004 1.6975e-05 deg
tp 2459004.917357379810
(2020-Jun-04.41735738)		 0.00013805 TDB
period 2927.268360019252
8.01		 3.5862e-05
9.818e-08		 d
yr
n .1229815499381247 1.5067e-09 deg/d
Q 4.638872829774215 3.7887e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3168  
   data-arc span      41080 days (112.47 yr)  
   first obs. used      1907-04-04  
   last obs. used      2019-09-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44553  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:02:04  

Additional Information
 Earth MOID = 2.35681 au 
 Jupiter MOID = .581157 au 
 T_jup = 3.018 
[ 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 9.2   n/a MPO492764  
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-August); 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 ]
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