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JPL Small-Body Database Browser
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705 Erminia (A910 TE)
Classification: Main-belt Asteroid          SPK-ID: 2000705
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04975219517714353 4.2285e-08  
a 2.923332712776365 1.3557e-08 au
q 2.777890493082587 1.2289e-07 au
i 25.01382482539252 5.4887e-06 deg
node 2.807350190231396 1.0968e-05 deg
peri 102.6045832588946 5.6654e-05 deg
M 184.6545975348806 5.4343e-05 deg
tp 2459489.716840461770
(2021-Oct-02.21684046)
0.00027515 TDB
period 1825.642748916195
5.00
1.2699e-05
3.477e-08
d
yr
n .1971908251018532 1.3717e-09 deg/d
Q 3.068774932470144 1.4231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2201  
   data-arc span      39837 days (109.07 yr)  
   first obs. used      1910-10-06  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43268  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:56:08  

Additional Information
 Earth MOID = 1.86393 au 
 Jupiter MOID = 2.00278 au 
 T_jup = 3.137 
[ 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 8.39   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 25
diameter diameter 132.261 km 1.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 53.96 h n/a LCDB (Rev. 2019-January); 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:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Koff, R.A.; Pravec, P.; Goncalves, R.; Antonini, P.; Behrend, R.; Pray, D.P. (2006) Minor Planet Bull. 33, 44.]
geometric albedo albedo 0.031   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.696   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=6.12, mean=7.32, max.=8.04) deg.
U-B UB 0.288   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=6.12, mean=7.32, max.=8.04) deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B C   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)

705 Erminia (A910 TE)          Discovered 1910-Oct-06 by Ernst, E. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A910 TE = 1948 HA = 1951 AU = A895 TA = A905 VG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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