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 ]  
21413 Albertsao (1998 FS68)
Classification: Main-belt Asteroid          SPK-ID: 2021413
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144318873695841 2.9863e-08  
a 2.259236828694401 5.4588e-09 au
q 2.000708094372027 6.6944e-08 au
i 3.135628901442364 3.1558e-06 deg
node 249.8525667408463 6.6259e-05 deg
peri 36.62288367698785 6.8015e-05 deg
M 170.3738282436563 1.5881e-05 deg
tp 2458613.495478323130
(2019-May-09.99547832)
5.4368e-05 TDB
period 1240.340902016102
3.40
4.4954e-06
1.231e-08
d
yr
n .2902427868135614 1.0519e-09 deg/d
Q 2.517765563016775 6.0835e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1966  
   data-arc span      9913 days (27.14 yr)  
   first obs. used      1994-01-10  
   last obs. used      2021-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49046  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:45:10  

Additional Information
 Earth MOID = .983434 au 
 Jupiter MOID = 2.60217 au 
 T_jup = 3.610 
[ 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 14.65   n/a E2021B10  

21413 Albertsao           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Albert Tsao (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his materials science project. He attends the Brookline High School, Brookline, Massachusetts.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050224/MPCPages.arcLast Updated: 2005-02-28

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2106-Mar-14 01:44 < 00:01 Hebe 0.0443796403528671 0.0443674001651159 0.0443918808234062 7.07125799093178 7.07125797112212 2490332.572446966 0.425739767965909 635.389878114821 33.7627147045102 16.1907533436304 55727.0760841431 T 34 CATAB v2.0f-lin.ifort 2021-Apr-13 03:45:20 2021-Apr-13 03:45
2167-Mar-19 11:59 00:01 Eunom 0.0312474368980543 0.0312397222951759 0.0312551626215414 5.20971541319389 5.20971532696248 2512617.999590710 1.02138857304202 1009.63436295899 37.4235540360449 67.6930363634452 115501.527542957 T 34 CATAB v2.0f-lin.ifort 2021-Apr-13 03:45:20 2021-Apr-13 03:45

Alternate Designations
 1998 FS68 = 1994 BK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-13 20:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin