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
JPL Small-Body Database Browser
Search: [ help ]  
46569 (1991 SY1)
Classification: Main-belt Asteroid          SPK-ID: 2046569
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .216827925213609 3.3533e-08  
a 2.383748697783034 9.1842e-09 au
q 1.866885413412097 8.3026e-08 au
i 9.306823033198633 4.5426e-06 deg
node 345.3281918207627 2.1034e-05 deg
peri 297.2995407669581 2.3436e-05 deg
M 74.54283874663372 1.019e-05 deg
tp 2459118.149146776420
(2020-Sep-25.64914678)
3.7691e-05 TDB
period 1344.278120411857
3.68
7.7689e-06
2.127e-08
d
yr
n .2678017253525661 1.5477e-09 deg/d
Q 2.900611982153972 1.1176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1086  
   data-arc span      10608 days (29.04 yr)  
   first obs. used      1991-08-07  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54555  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:24:19  

Additional Information
 Earth MOID = .87214 au 
 Jupiter MOID = 2.33831 au 
 T_jup = 3.487 
[ 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 15.2   n/a MPO468329  

46569 (1991 SY1)          Discovered 1991-Sep-16 by Holt, H. E. at Palomar
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 SY1 = 1991 PS20 = 1999 XA220 = 2001 CM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-23 23:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin