Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456640.5 (2013-Dec-14.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2897421889149173 9.3169e-08  
q 1.856402655799154 2.4258e-07 au
tp 2456315.346159729953
(2013-Jan-22.84615973)
9.8644e-05 TDB
node 123.587647270648 3.0522e-05 deg
peri 264.8228161500325 3.7795e-05 deg
i 17.78054653092413 1.2447e-05 deg
  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
 Jupiter MOID = 2.41733 au 
 T_jup = 3.282 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.680551113697393E-15 -2.252465273444352E-14 4.232189778826403E-13 -6.993735506186406E-15 -3.671051536263057E-13 -3.820485993883023E-15
q -2.252465273444352E-14 5.884584546935242E-14 -3.144491596202531E-13 1.68024487531233E-14 1.134454282134666E-12 1.193301449041122E-14
tp 4.232189778826403E-13 -3.144491596202531E-13 9.730553027341247E-9 2.293423788759737E-12 2.222645149774718E-9 -5.026072016408804E-13
node -6.993735506186406E-15 1.68024487531233E-14 2.293423788759737E-12 9.315997984403147E-10 -8.842831488216533E-10 6.706186028333787E-11
peri -3.671051536263057E-13 1.134454282134666E-12 2.222645149774718E-9 -8.842831488216533E-10 1.42845092757085E-9 -6.313858745641624E-11
i -3.820485993883023E-15 1.193301449041122E-14 -5.026072016408804E-13 6.706186028333787E-11 -6.313858745641624E-11 1.549184842909624E-10

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

[ show close-approach data ]
Alternate Designations
 2001 BW9 = 2004 XW38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-08 20:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin