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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0332636726360158 4.4254e-08  
a 2.529295838392203 8.7401e-09 au
q 2.445162169624288 1.1267e-07 au
i 14.88704020590721 4.8093e-06 deg
node 43.49065919949142 1.7856e-05 deg
peri 285.3849285104432 7.4497e-05 deg
M 11.35601209558279 7.3361e-05 deg
tp 2458954.153043880843
(2020-Apr-14.65304388)
0.00029936 TDB
period 1469.257346897917
4.02
7.6156e-06
2.085e-08
d
yr
n .245021745686743 1.27e-09 deg/d
Q 2.613429507160118 9.0308e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2928  
   data-arc span      47032 days (128.77 yr)  
   first obs. used      1891-08-28  
   last obs. used      2020-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34871  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:10:59  

Additional Information
 Earth MOID = 1.48036 au 
 Jupiter MOID = 2.47913 au 
 T_jup = 3.404 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455993.5 (2012-Mar-07.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03251627648396287 4.4032e-08  
q 2.446570215831585 1.1198e-07 au
tp 2456017.389073341689
(2012-Mar-30.88907334)
0.00030568 TDB
node 43.61189024128082 1.7809e-05 deg
peri 285.9767565851407 7.6566e-05 deg
i 14.91043142636755 4.8152e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2928  
   data-arc span      47032 days (128.77 yr)  
   first obs. used      1891-08-28  
   last obs. used      2020-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34871  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:10:59  

Additional Information
 Jupiter MOID = 2.47913 au 
 T_jup = 3.404 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.938817866348012E-15 -4.916967077340382E-15 2.07299545033782E-12 -7.307484968291599E-15 4.777479352935383E-13 6.856087171944891E-15
q -4.916967077340382E-15 1.253942282123629E-14 -4.866602152391284E-12 1.605175849800747E-14 -1.117250500987872E-12 -1.67940562763951E-14
tp 2.07299545033782E-12 -4.866602152391284E-12 9.343831105236418E-8 -1.151311011644718E-10 2.278382517053749E-8 3.44393114179785E-12
node -7.307484968291599E-15 1.605175849800747E-14 -1.151311011644718E-10 3.1717345141107E-10 -3.336967626698825E-10 -1.02219886931749E-11
peri 4.777479352935383E-13 -1.117250500987872E-12 2.278382517053749E-8 -3.336967626698825E-10 5.862372478618449E-9 1.061190929554335E-11
i 6.856087171944891E-15 -1.67940562763951E-14 3.44393114179785E-12 -1.02219886931749E-11 1.061190929554335E-11 2.318658376136947E-11

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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