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
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 ]  
21414 Blumenthal (1998 FQ69)
Classification: Main-belt Asteroid          SPK-ID: 2021414
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2497315217003802 3.7577e-08  
a 2.414988523716986 6.3095e-09 au
q 1.811889764800188 9.0491e-08 au
i 11.81001169880315 4.2628e-06 deg
node 182.2570211651729 1.6074e-05 deg
peri 179.6998651814683 1.7246e-05 deg
M 166.7079188851879 6.6509e-06 deg
tp 2458365.717766603072
2.4515e-05 TDB
period 1370.790335282618
n .2626222192657773 1.0292e-09 deg/d
Q 3.018087282633783 7.8852e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1708  
   data-arc span      9454 days (25.88 yr)  
   first obs. used      1994-03-16  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48531  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:23:50  

Additional Information
 Earth MOID = .809294 au 
 Jupiter MOID = 2.44139 au 
 T_jup = 3.446 
[ 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 14.1   n/a MPO416934  
diameter diameter 3.264 km 0.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.456   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

21414 Blumenthal           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Daniel Abraham Blumenthal (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for his microbiology project. He attends the Jones College Prep, Chicago, Illinois, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060711/MPCPages.arcLast Updated: 2006-07-17

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
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
1982-Oct-03 05:48 < 00:01 Hygie 0.016444521742971 0.0164415553274317 0.0164474885112696 5.57099414404832 5.57099372230473 2445245.741868163 0.631728768682624 193.216621137613 39.1763819040994 -41.128917056809 42358.4598319661 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 23:24:06 2020-Feb-22 23:24

Alternate Designations
 1998 FQ69 = 1999 NF53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Apr-03 02:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin