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2215 Sichuan (1964 VX2)
Classification: Main-belt Asteroid          SPK-ID: 2002215
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2608915545665572 4.1835e-08  
a 2.793323963634458 9.112e-09 au
q 2.064569332353848 1.1704e-07 au
i 10.76819079718548 4.3172e-06 deg
node 71.03242946575438 2.2848e-05 deg
peri 333.4347947963007 2.3898e-05 deg
M 334.8004246128896 6.9568e-06 deg
tp 2459119.863380449802
(2020-Sep-27.36338045)
3.3095e-05 TDB
period 1705.219881756751
4.67
8.3438e-06
2.284e-08
d
yr
n .2111164688210889 1.033e-09 deg/d
Q 3.522078594915069 1.1489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2844  
   data-arc span      28692 days (78.55 yr)  
   first obs. used      1942-04-12  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39901  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:11:36  

Additional Information
 Earth MOID = 1.08055 au 
 Jupiter MOID = 1.89376 au 
 T_jup = 3.253 
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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 11.7   n/a MPO358649  
diameter diameter 12.920 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.975 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2007) Minor Planet Bull. 34, 31-32.]
geometric albedo albedo 0.242   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2215 Sichuan           Discovered 1964 Nov. 12 at the Purple Mountain Observatory.
Named for the most populous province of China, noted for its agricultural products.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 6059Last Updated: 2006-03-21

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Alternate Designations
 1964 VX2 = 1942 GO = 1950 XO = 1978 WO12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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