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4790 Petrpravec (1988 PP)
Classification: Main-belt Asteroid          SPK-ID: 2004790
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08504512320018939 1.3199e-08  
a 2.626120958404754 9.7935e-09 au
q 2.402782177958623 3.8727e-08 au
i 12.7202703760464 3.8424e-07 deg
node 131.4634594714826 2.8029e-06 deg
peri 84.98450362122078 1.2817e-05 deg
M 311.6706047203292 1.5092e-05 deg
tp 2459409.179302153137
(2021-Jul-13.67930215)
6.5514e-05 TDB
period 1554.427659199981
4.26
8.6953e-06
2.381e-08
d
yr
n .2315964965428378 1.2955e-09 deg/d
Q 2.849459738850886 1.0626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3172  
   data-arc span      15725 days (43.05 yr)  
   first obs. used      1978-03-05  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:51:28  

Additional Information
 Earth MOID = 1.43646 au 
 Jupiter MOID = 2.22055 au 
 T_jup = 3.362 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.05   n/a MPCxxxxx  
diameter diameter 16.217 km 0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 241.191 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 0.038   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4790 Petrpravec (1988 PP)          Discovered 1988-Aug-09 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1988 PP = 1978 EA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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