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214 Aschera (A880 DB)
Classification: Main-belt Asteroid          SPK-ID: 2000214
[ 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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0307496457682606 3.5657e-08  
a 2.611486544344594 7.2344e-09 au
q 2.53118425817742 9.3184e-08 au
i 3.435856999123073 4.2753e-06 deg
node 341.9708161615698 6.755e-05 deg
peri 131.6899539754641 9.9907e-05 deg
M 134.0017408396152 7.2906e-05 deg
tp 2458426.729711812301
(2018-Nov-04.22971181)		 0.00031199 TDB
period 1541.45239049392
4.22		 6.4053e-06
1.754e-08		 d
yr
n .2335459740567447 9.7046e-10 deg/d
Q 2.691788830511769 7.4569e-09 au
   Orbit Determination Parameters
   # obs. used (total)      3050  
   data-arc span      51361 days (140.62 yr)  
   first obs. used      1880-03-04  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:07  

Additional Information
 Earth MOID = 1.54898 au 
 Jupiter MOID = 2.32032 au 
 T_jup = 3.406 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455979.5 (2012-Feb-22.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03106306954154927 3.5846e-08  
q 2.53031102503548 9.3853e-08 au
tp 2455355.646161203090
(2010-Jun-08.14616120)		 0.00030689 TDB
node 342.0455467752168 6.7624e-05 deg
peri 134.2835711097306 9.9117e-05 deg
i 3.434585888004379 4.2722e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      3050  
   data-arc span      51361 days (140.62 yr)  
   first obs. used      1880-03-04  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:07  

Additional Information
 Jupiter MOID = 2.32032 au 
 T_jup = 3.406 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.28494327475559E-15 -3.35444745627209E-15 6.641340604769113E-13 -2.883464295044829E-15 1.561638621548164E-13 2.389881993351707E-17
q -3.35444745627209E-15 8.808323777231497E-15 -1.787436421019181E-12 8.456750543957102E-15 -4.186475715357957E-13 1.544142245870736E-18
tp 6.641340604769113E-13 -1.787436421019181E-12 9.41829774765601E-8 -5.688538671332527E-11 2.225703968468038E-8 -8.973542263086671E-13
node -2.883464295044829E-15 8.456750543957102E-15 -5.688538671332527E-11 4.573064970754815E-9 -4.577559403856105E-9 2.20194277082321E-11
peri 1.561638621548164E-13 -4.186475715357957E-13 2.225703968468038E-8 -4.577559403856105E-9 9.82421270209093E-9 -2.218867163108505E-11
i 2.389881993351707E-17 1.544142245870736E-18 -8.973542263086671E-13 2.20194277082321E-11 -2.218867163108505E-11 1.82518261406286E-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 9.3   n/a MPO473763  
magnitude slope G 0.51   n/a PDS3 (MPC 17258) Fit
diameter diameter 24.957 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.835 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Bel'skaya, I.N.; Shevchenko, V.G.; Kiselev, N.; Krugly, Yu.N.; et al. (2003) Icarus 166, 276-284.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Shevchenko, V.G.; Belksaya, I.N.; Muinon, K.; Penttila, A.; et al. (2016) Plan. Space Sci. 123, 101-116.]
geometric albedo albedo 1.000   0.000 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.700   0.041 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=1.66, mean=2.20, max.=2.97) deg.
U-B UB 0.217   0.050 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=1.66, mean=3.73, max.=9.08) deg.
Tholen spectral type spec_T E   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

214 Aschera (A880 DB)          Discovered 1880-Feb-29 by Palisa, J. at Pola
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A880 DB = 1947 BP = 1948 JE = 1949 QG2 = 1949 SX1 = 1950 XH = 1953 OO = A903 SE 
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