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14915 (1993 UM8)
Classification: Main-belt Asteroid          SPK-ID: 2014915
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1033100266249937 3.4758e-08  
a 2.591565205739715 1.0778e-08 au
q 2.323830535334338 8.7477e-08 au
i 14.83738142654905 5.3396e-06 deg
node 185.3157317436024 1.1948e-05 deg
peri 259.3681715360161 3.0348e-05 deg
M 186.3089553546659 2.5522e-05 deg
tp 2460131.718732841448
(2023-Jul-06.21873284)
0.0001075 TDB
period 1523.847958675003
4.17
9.506e-06
2.603e-08
d
yr
n .2362440412447858 1.4737e-09 deg/d
Q 2.859299876145093 1.1891e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1993  
   data-arc span      17795 days (48.72 yr)  
   first obs. used      1972-10-09  
   last obs. used      2021-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:40:30  

Additional Information
 Earth MOID = 1.39069 au 
 Jupiter MOID = 2.40074 au 
 T_jup = 3.365 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.06   n/a E2021B10  
rotation period rot_per 19.9734 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

14915 (1993 UM8)          Discovered 1993-Oct-20 by Elst, E. W. at La Silla
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 UM8 = 1972 TF9 = 1991 FW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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