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70175 (1999 PU4)
Classification: Main-belt Asteroid          SPK-ID: 2070175
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1435553247901462 3.4027e-08  
a 2.290709727157304 6.1169e-09 au
q 1.96186614827529 7.856e-08 au
i 5.099322809455514 2.8275e-06 deg
node 125.4610771401373 4.4696e-05 deg
peri 290.968395333249 4.6046e-05 deg
M 299.6860997174362 1.0628e-05 deg
tp 2459212.662404985422
(2020-Dec-29.16240499)
3.7433e-05 TDB
period 1266.349306493649
3.47
5.0723e-06
1.389e-08
d
yr
n .2842817523995743 1.1387e-09 deg/d
Q 2.619553306039318 6.995e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1380  
   data-arc span      10809 days (29.59 yr)  
   first obs. used      1991-04-14  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:23  

Additional Information
 Earth MOID = .980733 au 
 Jupiter MOID = 2.70136 au 
 T_jup = 3.580 
[ show covariance matrix ]

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 15.3   n/a MPO385261  
rotation period rot_per 5.133 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.]

70175 (1999 PU4)          Discovered 1999-Aug-15 by Broughton, J. at Reedy Creek
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 PU4 = 1998 JO4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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