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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1131608896522899 4.7835e-08  
a 2.364067406220857 1.2309e-08 au
q 2.096547435334923 1.0933e-07 au
i 3.374033541855305 4.8968e-06 deg
node 170.6896855818091 7.3932e-05 deg
peri 166.1539166392116 7.7705e-05 deg
M 243.8000095400351 2.6427e-05 deg
tp 2458029.040430462773
(2017-Oct-02.54043046)
9.9479e-05 JED
period 1327.66409322341
3.63
1.0369e-05
2.839e-08
d
yr
n .2711529232713999 2.1178e-09 deg/d
Q 2.63158737710679 1.3702e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1459  
   data-arc span      10084 days (27.61 yr)  
   first obs. used      1988-09-03  
   last obs. used      2016-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49429  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:33:43  

Additional Information
 Earth MOID = 1.08652 au 
 Jupiter MOID = 2.68789 au 
 T_jup = 3.538 
[ 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. 2016-February); 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. (2016) Astron. J. 150, A75.]

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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