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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 ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .105485380417017 4.3591e-08  
a 1.929983106748702 4.865e-09 au
q 1.726398104534899 8.4827e-08 au
i 22.80023105132246 5.0876e-06 deg
node 64.02954890718746 8.6357e-06 deg
peri 316.95033971 2.1613e-05 deg
M 47.08010701594448 1.9804e-05 deg
tp 2458872.425216950100
(2020-Jan-23.92521695)
5.3763e-05 TDB
period 979.3291651259235
2.68
3.7029e-06
1.014e-08
d
yr
n .3675985693264947 1.3899e-09 deg/d
Q 2.133568108962505 5.3781e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1595  
   data-arc span      17608 days (48.21 yr)  
   first obs. used      1971-11-11  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:08:08  

Additional Information
 Earth MOID = .76812 au 
 Jupiter MOID = 3.26016 au 
 T_jup = 3.813 
[ 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 14.0   n/a MPO502171  
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-August); 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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