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1189 Terentia (1930 SG)
Classification: Main-belt Asteroid          SPK-ID: 2001189
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1128948597538036 3.6199e-08  
a 2.934340861102736 1.4074e-08 au
q 2.603068861118687 1.0627e-07 au
i 9.868932543110157 4.7105e-06 deg
node 275.2085317412795 2.3774e-05 deg
peri 95.02978546328288 3.1893e-05 deg
M 300.4693998198532 2.241e-05 deg
tp 2459304.100183067256
(2021-Mar-30.60018307)
0.00011526 TDB
period 1835.964454809272
5.03
1.3208e-05
3.616e-08
d
yr
n .1960822275491158 1.4107e-09 deg/d
Q 3.265612861086784 1.5662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3198  
   data-arc span      37962 days (103.93 yr)  
   first obs. used      1915-10-14  
   last obs. used      2019-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39645  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:48:08  

Additional Information
 Earth MOID = 1.62647 au 
 Jupiter MOID = 2.27562 au 
 T_jup = 3.243 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.9   n/a MPO350808  
diameter diameter 59.246 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 19.308 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2002) Minor Planet Bull. 29, 47-48.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.042   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Ch   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)

1189 Terentia (1930 SG)          Discovered 1930-Sep-17 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 SG = 1935 SK2 = A915 TJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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