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JPL Small-Body Database Browser
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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03074964756040018 3.7354e-08  
a 2.611486544094127 7.5823e-09 au
q 2.531184253254505 9.8288e-08 au
i 3.435858741679585 4.6525e-06 deg
node 341.9708200129292 6.7838e-05 deg
peri 131.6899531711815 0.00010594 deg
M 134.0017380558807 7.9722e-05 deg
tp 2458426.729723814275
(2018-Nov-04.22972381)
0.0003415 TDB
period 1541.452390272159
4.22
6.7133e-06
1.838e-08
d
yr
n .2335459740903437 1.0171e-09 deg/d
Q 2.691788834933749 7.8154e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2796  
   data-arc span      51189 days (140.15 yr)  
   first obs. used      1880-03-04  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44606  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:01:07  

Additional Information
 Earth MOID = 1.54898 au 
 Jupiter MOID = 2.32032 au 
 T_jup = 3.406 
[ 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 9.3   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. 2019-August); 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 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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