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100167 (1993 UN2)
Classification: Main-belt Asteroid          SPK-ID: 2100167
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1812855244454762 1.1799e-07  
a 2.567323296044053 1.5331e-08 au
q 2.101904745899618 3.0889e-07 au
i 3.44301940312604 7.8352e-06 deg
node 312.1383680048633 7.7826e-05 deg
peri 191.1940570534497 7.9012e-05 deg
M 135.5783590354345 1.4702e-05 deg
tp 2458634.642415032787
(2019-May-31.14241503)
5.808e-05 TDB
period 1502.516567079528
4.11
1.3458e-05
3.685e-08
d
yr
n .2395980236675455 2.1461e-09 deg/d
Q 3.032741846188488 1.811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      9267 days (25.37 yr)  
   first obs. used      1993-10-21  
   last obs. used      2019-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53878  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:30:55  

Additional Information
 Earth MOID = 1.11448 au 
 Jupiter MOID = 1.98928 au 
 T_jup = 3.406 
[ 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 16.1   n/a MPO417504  

100167 (1993 UN2)          Discovered 1993-Oct-21 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1927-Jan-20 16:01 00:02 Jupiter 1.99304092882128 1.99304004932496 1.99304180831793 2.22137292884164 2.02101896132544 2424901.167241098 1.96047149401346 193.443116927339 23.5563955060869 84.4061856858041 1200994.34591492 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 15:30:57 2021-Apr-13 15:30
2128-Jul-13 11:59 00:03 Jupiter 1.98909176829033 1.98909096254668 1.98909257403329 2.19601323995864 1.99268827094373 2498489.999312991 2.88533133962257 213.485862657053 32.623408485558 87.9435235715057 1048881.05390681 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 15:30:57 2021-Apr-13 15:30

Alternate Designations
 1993 UN2 = 1997 WC17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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