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19971 (1988 RZ5)
Classification: Main-belt Asteroid          SPK-ID: 2019971
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134726299180194 5.4814e-08  
a 2.363334818298253 1.3903e-08 AU
q 2.095161001089126 1.2377e-07 AU
i 3.371069141092793 5.0033e-06 deg
node 170.7120060051867 8.8627e-05 deg
peri 165.5170745075622 9.2231e-05 deg
M 81.82027434427958 2.6168e-05 deg
tp 2456698.890693900799
(2014-Feb-10.39069390)
9.5424e-05 JED
period 1327.047007185982
3.63
1.171e-05
3.206e-08
d
yr
n .2712790112562659 2.3938e-09 deg/d
Q 2.63150863550738 1.548e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1246  
   data-arc span      9698 days (26.55 yr)  
   first obs. used      1988-09-03  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49308  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:35:43  

Additional Information
 Earth MOID = 1.08633 AU 
 T_jup = 3.539 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO319334  
rotation period rot_per 6.1825 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]

19971 (1988 RZ5)          Discovered 1988-Sep-03 by Debehogne, H. at La Silla
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 RZ5 = 1998 FE123 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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