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1019 Strackea (A924 ES)
Classification: Inner Main-belt Asteroid          SPK-ID: 2001019
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07119833063246973 1.7821e-08  
a 1.911570297932075 4.049e-09 au
q 1.775469683832699 3.3708e-08 au
i 26.98225292878242 5.561e-07 deg
node 144.3969528592472 1.9537e-06 deg
peri 121.8619074798505 8.3685e-06 deg
M 191.4059256924549 9.1003e-06 deg
tp 2459848.588690624182
(2022-Sep-26.08869062)
2.5069e-05 TDB
period 965.3478587142841
2.64
3.0671e-06
8.397e-09
d
yr
n .3729225654257652 1.1849e-09 deg/d
Q 2.047670912031452 4.3372e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2716  
   data-arc span      35442 days (97.03 yr)  
   first obs. used      1924-02-23  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .30841  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:48:58  

Additional Information
 Earth MOID = .808193 au 
 Jupiter MOID = 3.13328 au 
 T_jup = 3.800 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457119.5 (2015-Apr-07.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07130921055821288 1.7789e-08  
q 1.775304576170032 3.3644e-08 au
tp 2456953.143062846161
(2014-Oct-22.64306285)
2.2188e-05 TDB
node 144.4246634501691 1.9539e-06 deg
peri 122.0682717914381 8.3954e-06 deg
i 26.9815507318214 5.5605e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2716  
   data-arc span      35442 days (97.03 yr)  
   first obs. used      1924-02-23  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .30841  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:48:58  

Additional Information
 Jupiter MOID = 3.13328 au 
 T_jup = 3.800 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.164444331885656E-16 -5.948053819186762E-16 -2.509933120933214E-13 -9.896855061154446E-15 -8.886910659193862E-14 4.148278670636519E-15
q -5.948053819186762E-16 1.131925537207296E-15 4.907965421029239E-13 1.83398609514779E-14 1.750781060481222E-13 -7.822739001555944E-15
tp -2.509933120933214E-13 4.907965421029239E-13 4.923229710067753E-10 -3.825716088302281E-12 1.825702889059429E-10 -7.547759710984803E-12
node -9.896855061154446E-15 1.83398609514779E-14 -3.825716088302281E-12 3.817911355935884E-12 -4.365868216718737E-12 -1.414172814506984E-13
peri -8.886910659193862E-14 1.750781060481222E-13 1.825702889059429E-10 -4.365868216718737E-12 7.048233734788696E-11 -2.562351271874809E-12
i 4.148278670636519E-15 -7.822739001555944E-15 -7.547759710984803E-12 -1.414172814506984E-13 -2.562351271874809E-12 3.091944084601013E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.55   n/a E2021B10 IRAS observations used: 3
diameter diameter 7.169 km 0.263 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.044 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2009) Minor Planet Bull. 36, 172-176.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 142-149.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 144-155.]
[Schmidt, R.E. (2015) Minor Planet Bull. 42, 1-3.]
[Stephens, R. D.; Warner, B. D. (2019) MPB 46, 298-301.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.305   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.953   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=9.27, mean=18.19, max.=24.73) deg.
U-B UB 0.513   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=9.27, mean=18.19, max.=24.73) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1019 Strackea (A924 ES)          Discovered 1924-Mar-03 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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