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 ]  
249597 (1997 SW17)
Classification: Main-belt Asteroid          SPK-ID: 2249597
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2190182238302904 7.7525e-08  
a 2.687863368458394 1.8434e-08 au
q 2.099172307600135 2.0246e-07 au
i 11.9381946912448 1.2376e-05 deg
node 20.30839610000172 2.6274e-05 deg
peri 296.2297252268897 3.9619e-05 deg
M 8.447816091446471 2.8581e-05 deg
tp 2458562.729636919466
(2019-Mar-20.22963692)
0.00012762 TDB
period 1609.567557082568
4.41
1.6558e-05
4.533e-08
d
yr
n .223662559807381 2.3009e-09 deg/d
Q 3.276554429316653 2.2471e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1997-09-30  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53557  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:48:27  

Additional Information
 Earth MOID = 1.11777 au 
 Jupiter MOID = 2.1804 au 
 T_jup = 3.308 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457876.5 (2017-May-03.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204173589936651 7.7784e-08  
q 2.094857549512693 2.0357e-07 au
tp 2458562.551919086824
(2019-Mar-20.05191909)
0.00012671 TDB
node 20.32882037279887 2.6248e-05 deg
peri 296.3502540164357 3.9497e-05 deg
i 11.94811833740883 1.2383e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1997-09-30  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53557  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:48:27  

Additional Information
 Jupiter MOID = 2.1804 au 
 T_jup = 3.308 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.050398694627065E-15 -1.580278007331306E-14 6.448897801573508E-12 -3.712483551637052E-14 1.274101469760947E-12 -1.080288745502338E-14
q -1.580278007331306E-14 4.14401679387532E-14 -1.658759547415438E-11 9.523710278793035E-14 -3.279835127159952E-12 2.942298610799125E-14
tp 6.448897801573508E-12 -1.658759547415438E-11 1.605632477592146E-8 -7.461627025591423E-11 3.719473833038188E-9 -2.191585974729115E-11
node -3.712483551637052E-14 9.523710278793035E-14 -7.461627025591423E-11 6.889593332770309E-10 -6.889730585204862E-10 5.826182609690194E-12
peri 1.274101469760947E-12 -3.279835127159952E-12 3.719473833038188E-9 -6.889730585204862E-10 1.560006908721031E-9 -1.090851474021315E-11
i -1.080288745502338E-14 2.942298610799125E-14 -2.191585974729115E-11 5.826182609690194E-12 -1.090851474021315E-11 1.533410556277346E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO503176  
diameter diameter 3.444 km 0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249597 (1997 SW17)          Discovered 1997-Sep-30 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

Alternate Designations
 1997 SW17 = 2001 OL55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-28 17:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin