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 ]  
152555 (1975 SD1)
Classification: Main-belt Asteroid          SPK-ID: 2152555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09192112503420616 4.403e-08  
a 3.183793167965585 2.2342e-08 au
q 2.891135318089969 1.4093e-07 au
i 12.88158302573374 4.963e-06 deg
node 189.0296956901711 1.7425e-05 deg
peri 169.2301619418177 2.9369e-05 deg
M 6.883317885130514 2.1712e-05 deg
tp 2459160.825540182677
(2020-Nov-07.32554018)
0.0001252 TDB
period 2074.98851173072
5.68
2.1841e-05
5.98e-08
d
yr
n .1734949364609874 1.8262e-09 deg/d
Q 3.476451017841201 2.4395e-08 au
  Orbit Determination Parameters
   # obs. used (total)      657  
   data-arc span      16541 days (45.29 yr)  
   first obs. used      1975-09-30  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52874  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:43:51  

Additional Information
 Earth MOID = 1.8875 au 
 Jupiter MOID = 1.99446 au 
 T_jup = 3.153 
[ show covariance matrix ]

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 14.95   n/a E2021B55  

152555 (1975 SD1)          Discovered 1975-Sep-30 by Bus, S. J. at Palomar
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 1975 SD1 = 2003 QC23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-11 17:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin