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JPL Small-Body Database Browser
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12937 Premadi (3024 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2012937
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1816087417794 4.9663e-08  
a 2.618106133423454 1.5738e-08 au
q 2.142635172687491 1.2864e-07 au
i 11.11345619814591 4.9215e-06 deg
node 290.2672547318031 2.6372e-05 deg
peri 253.3311499452611 2.9853e-05 deg
M 216.7859896246866 1.7986e-05 deg
tp 2459616.048538614074
(2022-Feb-05.54853861)
8.0465e-05 TDB
period 1547.317007046573
4.24
1.3952e-05
3.82e-08
d
yr
n .2326607917838031 2.0979e-09 deg/d
Q 3.093577094159417 1.8597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1430  
   data-arc span      21616 days (59.18 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45919  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:29:51  

Additional Information
 Earth MOID = 1.17703 au 
 Jupiter MOID = 2.03128 au 
 T_jup = 3.356 
[ 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 13.4   n/a MPO350905  
diameter diameter 10.584 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12937 Premadi           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Premana W. Premadi (b. 1964) is an astronomer at the ITB Observatorium Bosscha (Indonesia), an authority on cosmology, and teacher of theoretical astrophysics. Since 2005, she has been a member of the Universe Awareness (UNAWE) International Team, and is the founder and chair of UNAWE Indonesia (2007-2013).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-03-14

[ show close-approach data ]
Alternate Designations
 3024 P-L = 1993 OO7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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