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1171 Rusthawelia (1930 TA)
Classification: Main-belt Asteroid          SPK-ID: 2001171
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1935969959486249 3.8168e-08  
a 3.178056733923709 1.6141e-08 au
q 2.56279449728178 1.2099e-07 au
i 3.083617121178683 4.1076e-06 deg
node 121.5150261923044 8.1132e-05 deg
peri 291.7632628488577 8.1798e-05 deg
M 243.9033792589873 1.1543e-05 deg
tp 2459267.856621184880
6.7726e-05 TDB
period 2069.383088785166
n .1739648893194244 1.3253e-09 deg/d
Q 3.793318970565636 1.9266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2944  
   data-arc span      42233 days (115.63 yr)  
   first obs. used      1904-03-15  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44776  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:02:03  

Additional Information
 Earth MOID = 1.57568 au 
 Jupiter MOID = 1.58485 au 
 T_jup = 3.169 
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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 9.8   n/a MPO492764 IRAS observations used: 11
diameter diameter 82.229 km 1.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 10.98 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Ivarsen, K.; Willis, S.; Ingleby, L.; Matthews, D.; Simet, M. (2004) Minor Planet Bull. 31, 29-33.]
[Behrend, R. (2005) Observatoire de Geneve web site,]
[Menke, J. (2005) Minor Planet Bull. 32, 64-66.]
geometric albedo albedo 0.029   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.678   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=2.82, mean=4.97, max.=8.92) deg.
U-B UB 0.255   0.056 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.18, mean=6.05, max.=8.92) 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

1171 Rusthawelia (1930 TA)          Discovered 1930-Oct-03 by Arend, S. at Uccle
The original planet 525 Adelaide, discovered 1904 Mar. 14 by M. Wolf, Heidelberg, was observed only during the discovery opposition. In 1958 A. Patry, Nice, found that this object is identical with planet 1171 Rusthawelia, discovered 1930 Oct. 3 by S. Arend, Uccle. This planet retains the latter designation 1171 Rusthawelia. The older designation 525 Adelaide has been given to a minor planet discovered 1908 Oct. 21 by J. H. Metcalf and newly catalogued.
Note: "planet" implies "minor planet"
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1930 TA = 1926 AD = 1926 FH = 1927 FC = 1949 BT = A904 EB = A913 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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