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JPL Small-Body Database Browser
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154807 (2004 PP97)
Classification: Apollo [NEO]          SPK-ID: 2154807
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 131 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3165372908358418 3.2556e-08  
a 1.483775819267055 3.9376e-09 au
q 1.01410544122853 4.7569e-08 au
i 15.52664456235185 6.8092e-06 deg
node 15.12745855053127 1.0162e-05 deg
peri 68.65408597261155 2.0476e-05 deg
M 171.6845124171402 8.7079e-06 deg
tp 2458685.667557025955
(2019-Jul-21.16755703)
1.6145e-05 TDB
period 660.162514806671
1.81
2.6279e-06
7.195e-09
d
yr
n .5453202687605282 2.1708e-09 deg/d
Q 1.95344619730558 5.1841e-09 au
  Orbit Determination Parameters
   # obs. used (total)      692  
   data-arc span      14142 days (38.72 yr)  
   first obs. used      1977-08-21  
   last obs. used      2016-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44291  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:26:53  

Additional Information
 Earth MOID = .146778 au 
 Jupiter MOID = 3.3859 au 
 T_jup = 4.483 
[ 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 18.6   n/a MPO366897  
diameter diameter 0.469 km 0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 161. h n/a LCDB (Rev. 2019-August); 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:
[Warner, B.D. (2016) Minor Planet Bull. 43, 66-79.]
geometric albedo albedo 0.319   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

154807 (2004 PP97)          Discovered 2004-Aug-15 by Siding Spring Survey at Siding Spring
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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