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 ]  
7543 Prylis (1973 SY)
Classification: Jupiter Trojan          SPK-ID: 2007543
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06310867085471744 5.4578e-08  
a 5.19316531763342 9.0477e-08 au
q 4.865431556908757 3.3519e-07 au
i 14.06618009945646 5.3392e-06 deg
node 195.5640999193251 1.7959e-05 deg
peri 206.8732364984646 4.8937e-05 deg
M 294.7367742296225 4.8513e-05 deg
tp 2459384.132941336824
(2021-Jun-18.63294134)
0.00058803 TDB
period 4322.615922691696
11.83
0.00011297
3.093e-07
d
yr
n .08328290239948677 2.1765e-09 deg/d
Q 5.520899078358082 9.6187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1706  
   data-arc span      23183 days (63.47 yr)  
   first obs. used      1956-05-08  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49785  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:03:22  

Additional Information
 Earth MOID = 3.8782 au 
 Jupiter MOID = .0373157 au 
 T_jup = 2.936 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.6   n/a PDS3 (MPC 29587)  
diameter diameter 42.893 km 0.578 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 17.80 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D.; Coley, D.R.; Warner, B.D.; French, L.M. (2016) Minor Planet Bull. 43, 323-331.]
geometric albedo albedo 0.055   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

7543 Prylis (1973 SY)          Discovered 1973-Sep-19 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1973 SY = 1990 EP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin