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 ]  
277228 (2005 QW171)
Classification: Main-belt Asteroid          SPK-ID: 2277228
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522194738426309 5.5177e-08  
a 2.203287874815208 1.259e-08 au
q 1.867904553786989 1.2295e-07 au
i 3.922304562696918 6.9148e-06 deg
node 313.8487108561759 9.78e-05 deg
peri 342.4095589999375 0.00010189 deg
M 106.9117420898348 2.8329e-05 deg
tp 2458245.745266438983
(2018-May-07.24526644)
9.4162e-05 TDB
period 1194.552643007665
3.27
1.0239e-05
2.803e-08
d
yr
n .301368049459575 2.5831e-09 deg/d
Q 2.538671195843428 1.4507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      5843 days (16.00 yr)  
   first obs. used      2002-11-04  
   last obs. used      2018-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58771  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:34:16  

Additional Information
 Earth MOID = .851761 au 
 Jupiter MOID = 2.64732 au 
 T_jup = 3.645 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457110.5 (2015-Mar-29.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1527974335194091 5.5369e-08  
q 1.866454566449792 1.2347e-07 au
tp 2457051.790692883021
(2015-Jan-29.29069288)
9.5065e-05 TDB
node 313.9103734356278 9.7711e-05 deg
peri 342.4677440974513 0.00010177 deg
i 3.924321631062761 6.9206e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      5843 days (16.00 yr)  
   first obs. used      2002-11-04  
   last obs. used      2018-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58771  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:34:16  

Additional Information
 Jupiter MOID = 2.64732 au 
 T_jup = 3.645 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.065718714652571E-15 -6.811206546992972E-15 3.334651465574486E-12 -2.255520796711391E-14 9.619883647548167E-13 -2.347554375253764E-15
q -6.811206546992972E-15 1.524593200953764E-14 -7.534595195662737E-12 5.04451495939751E-14 -2.174388057436291E-12 5.592380522024146E-15
tp 3.334651465574486E-12 -7.534595195662737E-12 9.037434853142711E-9 -7.885233112329712E-11 2.755313751160494E-9 -9.254881978859927E-12
node -2.255520796711391E-14 5.04451495939751E-14 -7.885233112329712E-11 9.547447249959816E-9 -9.547573162779622E-9 3.990273926223397E-10
peri 9.619883647548167E-13 -2.174388057436291E-12 2.755313751160494E-9 -9.547573162779622E-9 1.035759597946696E-8 -4.009039460653263E-10
i -2.347554375253764E-15 5.592380522024146E-15 -9.254881978859927E-12 3.990273926223397E-10 -4.009039460653263E-10 4.789454286524571E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a MPO455058  

277228 (2005 QW171)          Discovered 2005-Aug-29 by NEAT at Palomar
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

Alternate Designations
 2005 QW171 = 2002 VQ136 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-18 10:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin