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14379 (1989 UM4)
Classification: Main-belt Asteroid          SPK-ID: 2014379
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1646011402054392 1.6956e-08  
a 2.671324276256685 9.3525e-09 au
q 2.231621254526365 4.463e-08 au
i 12.94347299964986 1.3286e-06 deg
node 218.7709523496294 2.7142e-06 deg
peri 185.7070067770888 7.5456e-06 deg
M 31.99659484627761 5.0848e-06 deg
tp 2459058.760921605123
(2020-Jul-28.26092160)
2.234e-05 TDB
period 1594.734329302919
4.37
8.3749e-06
2.293e-08
d
yr
n .2257429299570927 1.1855e-09 deg/d
Q 3.111027297987005 1.0892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2501  
   data-arc span      16212 days (44.39 yr)  
   first obs. used      1976-10-24  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41767  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:26:44  

Additional Information
 Earth MOID = 1.23988 au 
 Jupiter MOID = 2.29848 au 
 T_jup = 3.325 
[ 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 12.64   n/a E2021B10  
diameter diameter 7.145 km 0.343 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.72 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:
[Molnar, L.; Pal, A.; Sarneczky, K.; Szabo, R.; et al. (2018) Ap. J. Supp. Ser. 234, A37.]
geometric albedo albedo 0.416   0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14379 (1989 UM4)          Discovered 1989-Oct-22 by Mrkos, A. at Klet
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 UM4 = 1976 UH3 = 1998 QT98 = 2000 AT203 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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