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1006 Lagrangea (A923 RU)
Classification: Main-belt Asteroid          SPK-ID: 2001006
[ 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3574288609907323 3.5797e-08  
a 3.142834641466138 9.1697e-09 au
q 2.01949483528468 1.1255e-07 au
i 10.91871495974287 4.2255e-06 deg
node 294.5872536189774 2.0739e-05 deg
peri 86.20197548742956 2.1385e-05 deg
M 100.0814243402998 4.9839e-06 deg
tp 2458434.740701105301
(2018-Nov-12.24070111)		 2.738e-05 TDB
period 2035.076428464443
5.57		 8.9065e-06
2.438e-08		 d
yr
n .17689753316618 7.7419e-10 deg/d
Q 4.266174447647596 1.2447e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2673  
   data-arc span      35495 days (97.18 yr)  
   first obs. used      1923-09-12  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42485  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:36:35  

Additional Information
 Earth MOID = 1.05704 au 
 Jupiter MOID = 1.57294 au 
 T_jup = 3.081 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456828.5 (2014-Jun-20.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3531290621582421 3.5374e-08  
q 2.039737045124801 1.1075e-07 au
tp 2456397.196714082688
(2013-Apr-14.69671408)		 2.7879e-05 TDB
node 294.7959569994296 2.065e-05 deg
peri 86.28032763232864 2.1331e-05 deg
i 10.92115163460708 4.2276e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2673  
   data-arc span      35495 days (97.18 yr)  
   first obs. used      1923-09-12  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42485  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:36:35  

Additional Information
 Jupiter MOID = 1.57294 au 
 T_jup = 3.081 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.25129210642487E-15 -3.911676474422373E-15 -4.275179796502005E-13 -1.619906236100921E-16 -1.219961462187647E-13 -3.543017072243691E-15
q -3.911676474422373E-15 1.226512861695549E-14 1.306854975436959E-12 4.981050932389101E-15 3.712819054267394E-13 1.394937948460459E-14
tp -4.275179796502005E-13 1.306854975436959E-12 7.772123235243519E-10 -1.594907304214747E-12 1.710311335325645E-10 -1.623672198304793E-12
node -1.619906236100921E-16 4.981050932389101E-15 -1.594907304214747E-12 4.264221372666886E-10 -4.180431362570683E-10 3.474424677474611E-11
peri -1.219961462187647E-13 3.712819054267394E-13 1.710311335325645E-10 -4.180431362570683E-10 4.550150411263036E-10 -3.365614150885706E-11
i -3.543017072243691E-15 1.394937948460459E-14 -1.623672198304793E-12 3.474424677474611E-11 -3.365614150885706E-11 1.787300981100682E-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 11.3   n/a MPO250203  
diameter diameter 35.310 km 0.345 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 19.497 h n/a LCDB (Rev. 2020-October); 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:
[Carreno, A.; Arce, E.; Fornas, G.; Mas, V. (2019) Minor Planet Bull. 46, 200-203.]
[Polakis, T. (2019) Minor Planet Bull. 46, 78-80.]
geometric albedo albedo 0.046   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1006 Lagrangea (A923 RU)          Discovered 1923-Sep-12 by Belyavskij, S. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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