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831 Stateira (A916 SD)
Classification: Main-belt Asteroid          SPK-ID: 2000831
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1464195496808056 3.6042e-08  
a 2.211778712404204 5.1581e-09 au
q 1.887931069340388 8.0192e-08 au
i 4.836715227784731 3.6545e-06 deg
node 178.0642519160909 3.8285e-05 deg
peri 225.0902411861561 3.95e-05 deg
M 150.4383117581901 1.0054e-05 deg
tp 2458498.426975780364
(2019-Jan-14.92697578)
3.3041e-05 TDB
period 1201.464484722449
3.29
4.2029e-06
1.151e-08
d
yr
n .2996343250904864 1.0482e-09 deg/d
Q 2.53562635546802 5.9134e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2743  
   data-arc span      37890 days (103.74 yr)  
   first obs. used      1916-09-20  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41761  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:21:20  

Additional Information
 Earth MOID = .899769 au 
 Jupiter MOID = 2.85188 au 
 T_jup = 3.638 
[ 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 13.0   n/a MPO416712  
diameter diameter 7.218 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 861. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Polakis, T. (2019) Minor Planet Bull. 46, 78-80.]
geometric albedo albedo 0.257   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

831 Stateira (A916 SD)          Discovered 1916-Sep-20 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
2029-Jun-16 10:56 < 00:01 Iris 0.0482825185558035 0.0482812946697158 0.0482837425334078 2.79640341157687 2.79640336899906 2462303.955720515 0.654093494537708 129.565647617135 24.5108673121607 -63.9872889706065 265661.439910682 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 15:21:33 2020-Jun-23 15:21

Alternate Designations
 A916 SD = 1926 VA = 1949 SQ = 1949 UO1 = 1971 KZ = 1972 RV1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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