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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 ]

[ show orbit diagram ]
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 
[ 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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1995-Aug-04 04:59 < 00:01 Jupiter 1.96329805908139 1.96329772283416 1.96329839532951 2.69920818713046 2.53433779565282 2449933.707797833 0.33705787047428 102.451194932906 4.95023176535256 80.9097897414814 2919038.96748757 T 33 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:44 2020-Nov-13 04:11
2018-Aug-15 02:02 < 00:01 Jupiter 1.88707648388271 1.88707614878499 1.88707681898268 2.46878333870146 2.27973297659714 2458345.584734822 0.20895136439742 167.280102549954 10.6293553730643 82.8572885634382 2532355.28253131 T 33 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:44 2020-Nov-13 04:11
2041-Aug-25 10:10 < 00:01 Jupiter 1.96203268684194 1.96203221161922 1.96203316207069 2.25383583729442 2.05337836866839 2466756.923389503 0.452630185987718 311.787936271213 19.6537987970448 84.635176918184 2230040.77574961 T 33 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:44 2020-Nov-13 04:11
2149-May-18 14:00 00:02 Jupiter 1.88558909383447 1.88558871854806 1.88558946912966 2.54435640468671 2.36121423313675 2506104.083262947 1.70915650369757 275.415663741097 14.8733486171346 87.0873170213566 2412653.51095578 T 33 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:44 2020-Nov-13 04:11
2172-Jun-01 01:46 00:02 Jupiter 1.91862231805879 1.91862161015795 1.91862302596029 2.38708600466416 2.19436344293127 2514518.573609505 2.05874148825365 245.723569168549 42.1159150352041 85.4841993664615 2361912.63214686 T 33 CATAB v2.0f-lin.ifort 2020-Nov-13 04:11:44 2020-Nov-13 04:11

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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