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 ]  
21272 (1996 SA1)
Classification: Main-belt Asteroid          SPK-ID: 2021272
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1008153592894765 3.5507e-08  
a 2.216707099368732 7.5069e-09 au
q 1.99322897670634 8.0563e-08 au
i 9.15183472826517 5.8888e-06 deg
node 11.6027314082298 2.1561e-05 deg
peri 87.55948170222815 3.8898e-05 deg
M 43.27214529871924 3.2239e-05 deg
tp 2459055.600521950262
(2020-Jul-25.10052195)
0.00010767 TDB
period 1205.482458468492
3.30
6.1236e-06
1.677e-08
d
yr
n .2986356188520262 1.517e-09 deg/d
Q 2.440185222031124 8.2637e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1234  
   data-arc span      8894 days (24.35 yr)  
   first obs. used      1996-09-18  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53104  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:51:43  

Additional Information
 Earth MOID = 1.03424 au 
 Jupiter MOID = 2.68577 au 
 T_jup = 3.630 
[ 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 15.14   n/a E2021B10  
rotation period rot_per 2.801 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

21272 (1996 SA1)          Discovered 1996-Sep-18 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 SA1 = 1998 HN36 
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-10 18:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin