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JPL Small-Body Database Browser
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1209 Pumma (1927 HA)
Classification: Main-belt Asteroid          SPK-ID: 2001209
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1286193097229217 3.2099e-08  
a 3.167974086286572 1.4179e-08 au
q 2.76051144608829 1.0047e-07 au
i 6.939156491867042 3.6289e-06 deg
node 89.76045782305128 3.3995e-05 deg
peri 176.6246503264696 3.7508e-05 deg
M 47.92272816168046 1.5773e-05 deg
tp 2458326.336339137411
(2018-Jul-26.83633914)
9.0134e-05 TDB
period 2059.542970457445
5.64
1.3827e-05
3.786e-08
d
yr
n .1747960616330527 1.1735e-09 deg/d
Q 3.575436726484854 1.6003e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2707  
   data-arc span      33822 days (92.60 yr)  
   first obs. used      1927-04-22  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47671  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:18:38  

Additional Information
 Earth MOID = 1.7442 au 
 Jupiter MOID = 1.51145 au 
 T_jup = 3.179 
[ 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 10.6   n/a MPO431507  
diameter diameter 26.889 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.5001 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.141   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1209 Pumma (1927 HA)          Discovered 1927-Apr-22 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1927 HA = 1950 JQ = 1963 UU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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