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39539 Emmadesmet (1991 GU4)
Classification: Main-belt Asteroid          SPK-ID: 2039539
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08337877826315489 3.8735e-08  
a 3.050840143780596 1.7772e-08 au
q 2.796464819915983 1.1898e-07 au
i 9.147377297149795 4.5146e-06 deg
node 15.82433951497125 2.5976e-05 deg
peri 130.4395077612847 3.6554e-05 deg
M 210.8231299043881 2.6421e-05 deg
tp 2459807.041271359560
(2022-Aug-15.54127136)
0.00014498 TDB
period 1946.379874462739
5.33
1.7008e-05
4.657e-08
d
yr
n .184958755854055 1.6162e-09 deg/d
Q 3.305215467645211 1.9254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1679  
   data-arc span      10710 days (29.32 yr)  
   first obs. used      1991-04-08  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 03:34:56  

Additional Information
 Earth MOID = 1.81739 au 
 Jupiter MOID = 1.70196 au 
 T_jup = 3.212 
[ 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 13.3   n/a MPO351108  

39539 Emmadesmet           Discovered 1991 Apr. 8 by E. W. Elst at the European Southern Observatory.
Emma de Smet (2005) is the second granddaughter of the discoverer, and daughter of Mayré and Robby.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-03-16Last Updated: 2014-03-21

[ 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
1902-Feb-18 05:29 00:03 Jupiter 1.95481633503225 1.95481494029305 1.95481772977146 2.69100405163082 2.52485686608873 2415798.728575633 3.28844770375872 74.0924594484397 41.4885479125475 -41.7194156864714 2597116.99221896 T 27 CATAB v2.0f-lin.ifort 2020-Aug-25 03:35:07 2020-Aug-25 03:35
1950-Oct-13 00:08 00:02 Jupiter 1.74323496796755 1.74323448708341 1.74323544885219 3.01969591497192 2.85425665204021 2433567.505528466 1.79831605894817 127.554424733926 23.0415403747485 -84.1705679295568 2605838.1575018 T 27 CATAB v2.0f-lin.ifort 2020-Aug-25 03:35:07 2020-Aug-25 03:35
1999-May-14 16:10 < 00:01 Jupiter 1.76864414484401 1.76864368967465 1.76864460001377 3.49985091338985 3.36022843231405 2451313.173265063 0.46175256902347 106.302691220142 16.4261585921628 -84.0063061139049 3046903.74259222 T 27 CATAB v2.0f-lin.ifort 2020-Aug-25 03:35:07 2020-Aug-25 03:35
2008-Nov-10 04:38 < 00:01 Jupiter 1.97492600685203 1.97492556344131 1.97492645026274 2.78413909505846 2.62557689743225 2454780.693183233 0.28904984883104 43.6723859371875 12.9234370402049 72.9066070680165 3531189.17583317 T 27 CATAB v2.0f-lin.ifort 2020-Aug-25 03:35:07 2020-Aug-25 03:35
2057-Jul-02 22:01 00:01 Jupiter 1.75178676352157 1.75178624160422 1.75178728543902 3.04470288772281 2.88152343315318 2472547.417630984 1.18823853416188 100.905954792846 24.9880416160415 -86.0791909155087 2851811.06301109 T 27 CATAB v2.0f-lin.ifort 2020-Aug-25 03:35:07 2020-Aug-25 03:35
2106-Feb-02 01:00 00:02 Jupiter 1.7577392025663 1.75773853572659 1.757739869406 3.45198699706119 3.30944869200422 2490292.541418953 2.46698923086998 120.242734705101 29.4855081401922 88.9192689288028 2804578.93233165 T 27 CATAB v2.0f-lin.ifort 2020-Aug-25 03:35:07 2020-Aug-25 03:35
2115-Aug-02 17:31 00:03 Jupiter 1.99883794258118 1.99883656488175 1.99883932028037 2.88847705510254 2.73784308380325 2493761.230157486 2.87983317288568 62.393980635285 43.2867611450705 -18.0501660485407 2211529.02721991 T 27 CATAB v2.0f-lin.ifort 2020-Aug-25 03:35:07 2020-Aug-25 03:35
2164-Mar-22 19:28 00:04 Jupiter 1.75702577791378 1.75702457498243 1.75702698085003 3.0679200649642 2.90654066108293 2511526.311430112 4.12542389123945 189.528142335863 37.4076500043378 -72.4703972905976 2830812.69444092 T 27 CATAB v2.0f-lin.ifort 2020-Aug-25 03:35:07 2020-Aug-25 03:35

Alternate Designations
 1991 GU4 = 1996 DO2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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