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 ]  
193668 (2001 DJ66)
Classification: Main-belt Asteroid          SPK-ID: 2193668
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1571702348462873 5.4059e-08  
a 2.725638658058017 1.918e-08 au
q 2.297249390064919 1.441e-07 au
i 12.19054695181225 5.8498e-06 deg
node 326.0897774641072 2.1361e-05 deg
peri 191.9428843270856 2.59e-05 deg
M 186.5472606667089 1.4518e-05 deg
tp 2460188.416714617765
(2023-Aug-31.91671462)
6.8999e-05 TDB
period 1643.617842867226
4.50
1.7349e-05
4.75e-08
d
yr
n .2190290167281186 2.3119e-09 deg/d
Q 3.154027926051115 2.2194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      7098 days (19.43 yr)  
   first obs. used      2001-01-21  
   last obs. used      2020-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54459  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:21:13  

Additional Information
 Earth MOID = 1.30926 au 
 Jupiter MOID = 1.85739 au 
 T_jup = 3.306 
[ 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 15.68   n/a E2021B55  
rotation period rot_per 4.584 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:
[Polishook, D.; Ofek, O.E.; Waszczak, A.; Kulkarni, S.R. (2012) ACM 2012, #6347. Supplemental material.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

193668 (2001 DJ66)          Discovered 2001-Feb-19 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-02 17:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin