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30784 (1988 PO)
Classification: Main-belt Asteroid          SPK-ID: 2030784
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2033003262879793 2.0878e-08  
a 2.551284601631706 1.3277e-08 au
q 2.032607609666483 5.7689e-08 au
i 10.9366365030766 3.4286e-07 deg
node 266.6020170292108 3.9096e-06 deg
peri 94.37120121100047 7.2016e-06 deg
M 322.1806577724585 9.5638e-06 deg
tp 2459356.868135944974
(2021-May-22.36813594)
4.0113e-05 TDB
period 1488.458699294778
4.08
1.1619e-05
3.181e-08
d
yr
n .2418609264540331 1.8879e-09 deg/d
Q 3.069961593596929 1.5976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1228  
   data-arc span      11717 days (32.08 yr)  
   first obs. used      1988-08-11  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51498  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:39:58  

Additional Information
 Earth MOID = 1.06344 au 
 Jupiter MOID = 2.53288 au 
 T_jup = 3.386 
[ 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 13.64   n/a E2021B10  
diameter diameter 6.290 km 0.287 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.29755 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.214   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30784 (1988 PO)          Discovered 1988-Aug-11 by Mikolajczak, C., Coker, R. at Palomar
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 PO = 2000 OH6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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