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292 Ludovica (A890 HB)
Classification: Main-belt Asteroid          SPK-ID: 2000292
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0332636854001019 4.3132e-08  
a 2.529295832839603 7.7206e-09 au
q 2.445162131972237 1.0889e-07 au
i 14.88703981787497 4.6394e-06 deg
node 43.4906570658148 1.6548e-05 deg
peri 285.38489337121 6.8967e-05 deg
M 11.35605332590739 6.6719e-05 deg
tp 2458954.152875761359
(2020-Apr-14.65287576)
0.0002723 TDB
period 1469.257342059694
4.02
6.7273e-06
1.842e-08
d
yr
n .2450217464935927 1.1219e-09 deg/d
Q 2.613429533706968 7.9774e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3262  
   data-arc span      47176 days (129.16 yr)  
   first obs. used      1891-08-28  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .33507  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:31:14  

Additional Information
 Earth MOID = 1.48036 au 
 Jupiter MOID = 2.47913 au 
 T_jup = 3.404 
[ 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 9.9   n/a MPO435697  
diameter diameter 30.864 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.93 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Durech, J. (2006) IAU 2006, poster paper.]
[Ruthroff, J.C. (2010) Minor Planet Bull. 37, 158-159.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.187   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.860   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.14 deg.
U-B UB 0.440   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.14 deg.

292 Ludovica (A890 HB)          Discovered 1890-Apr-25 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A890 HB = 1930 GM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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