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43896 (1995 UL4)
Classification: Main-belt Asteroid          SPK-ID: 2043896
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1469718886658237 1.2e-08  
a 2.380160750415115 7.9096e-09 au
q 2.030344029598342 3.1469e-08 au
i 7.326663978769573 3.9237e-07 deg
node 34.51651002879384 7.9034e-06 deg
peri 305.0799950969525 1.1081e-05 deg
M 49.79038830393377 1.1097e-05 deg
tp 2459210.997027451645
(2020-Dec-27.49702745)
4.0936e-05 TDB
period 1341.244211829772
3.67
6.6857e-06
1.83e-08
d
yr
n .2684074956855735 1.3379e-09 deg/d
Q 2.729977471231889 9.0721e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2069  
   data-arc span      9193 days (25.17 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .469  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:40  

Additional Information
 Earth MOID = 1.03205 au 
 Jupiter MOID = 2.67583 au 
 T_jup = 3.513 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456616.5 (2013-Nov-20.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1463958436620547 1.1989e-08  
q 2.03193114181362 3.148e-08 au
tp 2456526.429668299735
(2013-Aug-21.92966830)
3.7537e-05 TDB
node 34.67764604656638 7.9082e-06 deg
peri 304.7089151304162 1.1145e-05 deg
i 7.324625002061611 3.9118e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2069  
   data-arc span      9193 days (25.17 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .469  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:40  

Additional Information
 Jupiter MOID = 2.67583 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.437409117466814E-16 -3.696212373955327E-16 -1.740253342111815E-13 1.164050356970385E-14 -5.41207297333761E-14 -3.953752041938967E-16
q -3.696212373955327E-16 9.909933126664816E-16 4.453252905897582E-13 -2.745282564813234E-14 1.402304571787607E-13 9.316321223816785E-16
tp -1.740253342111815E-13 4.453252905897582E-13 1.408991887408889E-9 1.695505044414001E-11 2.974745709853419E-10 -1.953897906708572E-12
node 1.164050356970385E-14 -2.745282564813234E-14 1.695505044414001E-11 6.254004206543957E-11 -5.778259804377323E-11 -1.67838090180476E-12
peri -5.41207297333761E-14 1.402304571787607E-13 2.974745709853419E-10 -5.778259804377323E-11 1.242134904487749E-10 1.176785566669232E-12
i -3.953752041938967E-16 9.316321223816785E-16 -1.953897906708572E-12 -1.67838090180476E-12 1.176785566669232E-12 1.530185783211675E-13

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 13.93   n/a E2021B10  
rotation period rot_per 35.960 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]

43896 (1995 UL4)          Discovered 1995-Oct-20 by Kobayashi, T. at Oizumi
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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