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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554946026469161 5.7715e-08  
a 2.726987332873454 1.8782e-08 au
q 2.302955521125123 1.5432e-07 au
i 12.17273805262339 6.1732e-06 deg
node 326.1283218469069 2.2035e-05 deg
peri 191.3994748988949 2.6853e-05 deg
M 100.6047976530585 1.4768e-05 deg
tp 2458540.837262756511
(2019-Feb-26.33726276)
6.6589e-05 TDB
period 1644.837912982226
4.50
1.6993e-05
4.652e-08
d
yr
n .2188665504112138 2.2612e-09 deg/d
Q 3.151019144621785 2.1703e-08 au
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      7085 days (19.40 yr)  
   first obs. used      2001-01-21  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55061  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 03:55:00  

Additional Information
 Earth MOID = 1.31417 au 
 Jupiter MOID = 1.86151 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 15.6   n/a MPO251488  
rotation period rot_per 4.584 h n/a LCDB (Rev. 2019-August); 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

[ 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
1926-Dec-08 06:56 00:03 Jupiter 1.86405942116847 1.86405890517919 1.86405993717651 3.75976305915549 3.63689768758132 2424857.788770095 2.51344907776007 473.569619531767 14.361901735677 87.7973044265166 2184173.63086646 T 16 CATAB v2.0f-lin.ifort 2020-Jun-24 03:55:07 2020-Jun-24 03:55
1963-Mar-08 04:28 00:02 Jupiter 1.90171284072307 1.90171199751417 1.90171368404213 3.40672779492493 3.27337664682526 2438096.686094942 1.56475653760431 1146.71833326906 27.48776220185 88.3055366996845 2329426.42317586 T 16 CATAB v2.0f-lin.ifort 2020-Jun-24 03:55:07 2020-Jun-24 03:55
2057-Mar-25 05:21 00:01 Jupiter 1.89203725059218 1.89203658369659 1.8920379175025 3.82549062661603 3.70661888035777 2472447.722853651 1.14618962462002 375.273077687581 16.2932840937658 86.0448702796927 2184534.11635912 T 16 CATAB v2.0f-lin.ifort 2020-Jun-24 03:55:07 2020-Jun-24 03:55
2093-Jun-21 01:37 00:02 Jupiter 1.87388903864471 1.87388843885344 1.87388963845313 3.4744132842638 3.34178415509386 2485684.567039035 2.2329120463267 635.287755699211 25.6039203682881 88.1696149125216 2125600.1096856 T 16 CATAB v2.0f-lin.ifort 2020-Jun-24 03:55:07 2020-Jun-24 03:55
2187-Jul-12 12:18 00:05 Jupiter 1.93070753840618 1.93070521325071 1.93070986369586 3.90082319411407 3.78668716889637 2520038.012306605 4.82338972230375 849.852690323534 21.4359346515065 82.779614187662 1902442.31503617 T 16 CATAB v2.0f-lin.ifort 2020-Jun-24 03:55:07 2020-Jun-24 03:55
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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