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1287 Lorcia (1933 QL)
Classification: Main-belt Asteroid          SPK-ID: 2001287
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06279845272735497 3.2554e-08  
a 3.0107846451904 1.3453e-08 au
q 2.821712027977165 9.9216e-08 au
i 9.820357936173094 4.2451e-06 deg
node 202.517415209158 2.1223e-05 deg
peri 267.7116670206234 4.1462e-05 deg
M 27.52842535574882 3.4547e-05 deg
tp 2458454.586043039029
(2018-Dec-02.08604304)
0.00018321 TDB
period 1908.173962989855
5.22
1.2789e-05
3.501e-08
d
yr
n .1886620439134008 1.2645e-09 deg/d
Q 3.199857262403636 1.4298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2851  
   data-arc span      31515 days (86.28 yr)  
   first obs. used      1933-08-25  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44037  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:57:14  

Additional Information
 Earth MOID = 1.86056 au 
 Jupiter MOID = 1.92585 au 
 T_jup = 3.224 
[ 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 11.1   n/a MPO473781  
diameter diameter 21.678 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.8776 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stone, G. (2017) Posting on CALL web site: http://www.minorplanet.info/call.html]
geometric albedo albedo 0.140   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.850   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.32 deg.
U-B UB 0.360   0.060 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.32 deg.

1287 Lorcia (1933 QL)          Discovered 1933-Aug-25 by Arend, S. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 QL = 1954 TG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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