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JPL Small-Body Database Browser
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3705 Hotellasilla (1984 ET1)
Classification: Main-belt Asteroid          SPK-ID: 2003705
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1675340857462418 3.4779e-08  
a 3.127811082816463 1.72e-08 au
q 2.603796112669845 1.0908e-07 au
i 1.400069698848549 4.7867e-06 deg
node 154.1971589599753 0.00014662 deg
peri 237.4691649864938 0.00014723 deg
M 328.917841202287 1.4172e-05 deg
tp 2459174.948754159488
(2020-Nov-21.44875416)
7.989e-05 TDB
period 2020.501597271186
5.53
1.6666e-05
4.563e-08
d
yr
n .1781735785243637 1.4697e-09 deg/d
Q 3.651826052963083 2.0082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2156  
   data-arc span      25986 days (71.15 yr)  
   first obs. used      1948-09-07  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:54:00  

Additional Information
 Earth MOID = 1.60993 au 
 Jupiter MOID = 1.78693 au 
 T_jup = 3.192 
[ 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 12.5   n/a MPO492794  
diameter diameter 17.865 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.063   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3705 Hotellasilla           Discovered 1984 Mar. 4 by H. Debehogne at the European Southern Observatory.
Named in honor of Erich Schumann and his Chilean team, who, for almost three decades and with great dedication, have secured the accommodation and catering of thousands of staff members and visitors to the European Southern Observatory at the "Hotel La Silla" in Chile.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1984 ET1 = 1948 RG = 1954 WE = 1976 UG3 = 1978 EZ1 = 1981 QH3 = 1981 RG3 = A921 WE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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