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1891 Gondola (1969 RA)
Classification: Main-belt Asteroid          SPK-ID: 2001891
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06855169891250368 3.9137e-08  
a 2.706815206884327 9.9767e-09 au
q 2.521258425810206 1.0502e-07 au
i 11.50711178793237 3.9427e-06 deg
node 321.8589706391191 1.8019e-05 deg
peri 10.84945290987468 3.1865e-05 deg
M 160.1922420186604 2.6911e-05 deg
tp 2458276.688769317502
(2018-Jun-07.18876932)
0.00012155 TDB
period 1626.620863545601
4.45
8.993e-06
2.462e-08
d
yr
n .221317707197789 1.2236e-09 deg/d
Q 2.892371987958447 1.0661e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2654  
   data-arc span      32805 days (89.82 yr)  
   first obs. used      1931-01-11  
   last obs. used      2020-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41719  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:03:16  

Additional Information
 Earth MOID = 1.51093 au 
 Jupiter MOID = 2.42076 au 
 T_jup = 3.333 
[ 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 12.1   n/a MPO458847  
diameter diameter 11.588 km 0.409 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.980 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.208   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B X   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)

1891 Gondola (1969 RA)          Discovered 1969-Sep-11 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1969 RA = 1931 AF = 1938 UG1 = 1985 DM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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