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1267 Geertruida (1930 HD)
Classification: Main-belt Asteroid          SPK-ID: 2001267
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1788499864551397 4.6222e-08  
a 2.469594763357779 9.7703e-09 AU
q 2.027907773381556 1.1422e-07 AU
i 4.781539085893344 4.6092e-06 deg
node 24.40128222895917 6.4099e-05 deg
peri 268.0722904020039 6.5192e-05 deg
M 242.687560448875 1.2631e-05 deg
tp 2457462.432517917456
5.0517e-05 JED
period 1417.545377852383
n .2539601240458411 1.5071e-09 deg/d
Q 2.911281753334003 1.1518e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      30991 days (84.85 yr)  
   first obs. used      1930-04-23  
   last obs. used      2015-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49349  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:34:36  

Additional Information
 Earth MOID = 1.02001 AU 
 T_jup = 3.458 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0 mag n/a MPO324316  
diameter diameter 23.41 km 1.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4
rotation period rot_per 5.50 h n/a LCDB (Rev. 2015-Feb); 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:
[Lagerkvist, C.-I. (1979) Icarus 38, 106-114.]
geometric albedo albedo 0.0466   0.006 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4

1267 Geertruida (1930 HD)          Discovered 1930-Apr-23 by Van Gent, H. at Johannesburg (LS)
Independent discovery Apr. 28 by K. Reinmuth, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 HD = 1926 GV = 1927 SH = 1930 LA = 1954 TM1 = 1965 HB = 1965 JE 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2015-Mar-30 12:56 UT
(server date/time)  
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