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1920 Sarmiento (1971 VO)
Classification: Inner Main-belt Asteroid          SPK-ID: 2001920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054603723318754 4.7891e-08  
a 1.930250497183674 5.0306e-09 au
q 1.726685561056897 9.2682e-08 au
i 22.80151689048314 5.3165e-06 deg
node 64.03181427860876 8.7769e-06 deg
peri 316.813269583994 2.1963e-05 deg
M 260.1715728968711 2.033e-05 deg
tp 2458872.125578332849
(2020-Jan-23.62557833)
5.5592e-05 TDB
period 979.5326946182118
2.68
3.8293e-06
1.048e-08
d
yr
n .367522188874273 1.4368e-09 deg/d
Q 2.133815433310453 5.5611e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1427  
   data-arc span      17345 days (47.49 yr)  
   first obs. used      1971-11-11  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40964  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:28:35  

Additional Information
 Earth MOID = .768148 au 
 Jupiter MOID = 3.25968 au 
 T_jup = 3.812 
[ 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 14.17   n/a PDS3 (MPC 17263)  
diameter diameter 2.854 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.048 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2007) Minor Planet Bull. 34, 32-37.]
[Stephens, R.D.; Coley, D.; Warner, B.D. (2014) Minor Planet Bull. 41, 8-13.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 108-114.]
geometric albedo albedo 0.466   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
B-V BV 0.720   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=11.71 deg.
U-B UB 0.257   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=11.71 deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices

1920 Sarmiento (1971 VO)          Discovered 1971-Nov-11 by Gibson, J. and Cesco, C. U. at El Leoncito
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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