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193581 (2001 BW9)
Classification: Main-belt Asteroid          SPK-ID: 2193581
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2887066486779845 9.3715e-08  
a 2.615079956043399 2.823e-08 au
q 1.860088985909138 2.4476e-07 au
i 17.78420892136704 1.2449e-05 deg
node 123.5496678831585 3.0494e-05 deg
peri 264.447293000511 3.7823e-05 deg
M 267.0699281356259 2.8898e-05 deg
tp 2459399.230683358711
(2021-Jul-03.73068336)
0.00012867 TDB
period 1544.635047938289
4.23
2.5012e-05
6.848e-08
d
yr
n .233064762113557 3.7739e-09 deg/d
Q 3.37007092617766 3.638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      6265 days (17.15 yr)  
   first obs. used      2001-01-16  
   last obs. used      2018-03-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .557  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 14:27:58  

Additional Information
 Earth MOID = .958704 au 
 Jupiter MOID = 2.41733 au 
 T_jup = 3.282 
[ 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 16.4   n/a MPO338473  

193581 (2001 BW9)          Discovered 2001-Jan-16 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ 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
1913-Jun-10 21:12 00:34 David 0.0484155602676862 0.0484101002663677 0.0484210394189636 2.79879364464413 2.79879353315637 2419929.383043096 33.5690244870077 1779.35292737247 138.006790741994 -82.3824008831341 51928.5682694442 T 9 CATAB v2.0e-lin.ifort 2019-Jul-13 14:28:04 2019-Jul-13 14:28
1991-Mar-18 16:55 00:02 Iris 0.0302336031917056 0.0302213514402925 0.0302458588724403 7.28253029469186 7.28253026858222 2448334.205027905 2.03323905289793 821.220857079284 85.0727160337053 -42.210160797961 35944.1312170867 T 9 CATAB v2.0e-lin.ifort 2019-Jul-13 14:28:04 2019-Jul-13 14:28
2164-Jun-12 11:57 00:12 Iris 0.0198629970058568 0.0198229507441462 0.0199034642171438 7.14366382077797 7.14366378026377 2511607.997947140 12.4361215995994 4987.1608895531 106.688877385329 66.2980047186027 25498.2183193295 T 9 CATAB v2.0e-lin.ifort 2019-Jul-13 14:28:04 2019-Jul-13 14:28

Alternate Designations
 2001 BW9 = 2004 XW38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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