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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03020044861660585 2.144e-08  
a 2.613188427637053 6.8314e-09 au
q 2.534268964802691 5.4734e-08 au
i 3.436581946550618 2.6883e-07 deg
node 341.9417967300366 5.5872e-06 deg
peri 132.6449321361961 1.8137e-05 deg
M 179.7320527820371 1.9507e-05 deg
tp 2458430.168689957842
(2018-Nov-07.66868996)
8.2313e-05 TDB
period 1542.959462837076
4.22
6.0504e-06
1.657e-08
d
yr
n .2333178600415461 9.1491e-10 deg/d
Q 2.692107890471415 7.0377e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3104  
   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      .4357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 10:47:50  

Additional Information
 Earth MOID = 1.55183 au 
 Jupiter MOID = 2.31728 au 
 T_jup = 3.405 
[ 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 9.28   n/a E2021B10  
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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2045-Jul-14 04:33 < 00:01 Thisb 0.0495943348663997 0.0495919685792126 0.0495967011727068 3.51860249809836 3.51860245902574 2468175.689752250 0.419828664387791 128.510308611111 37.469255297369 24.5802627794938 97602.4322066978 T 40 CATAB v2.0f-lin.ifort 2021-Mar-16 10:50:11 2021-Mar-16 10:50

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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