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2307 Garuda (1957 HJ)
Classification: Main-belt Asteroid          SPK-ID: 2002307
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05494033138346604 3.4602e-08  
a 3.047145941236979 1.5195e-08 au
q 2.879734733451636 1.0971e-07 au
i 7.709653710811028 3.8576e-06 deg
node 251.5240393256623 3.2157e-05 deg
peri 340.9231153740501 5.5292e-05 deg
M 281.3760604605034 4.6812e-05 deg
tp 2459424.817173494935
(2021-Jul-29.31717349)
0.00025363 TDB
period 1942.845694999051
5.32
1.4532e-05
3.979e-08
d
yr
n .1852952094582971 1.386e-09 deg/d
Q 3.214557149022323 1.6029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2932  
   data-arc span      24100 days (65.98 yr)  
   first obs. used      1954-11-23  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43015  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:42:55  

Additional Information
 Earth MOID = 1.86934 au 
 Jupiter MOID = 1.8048 au 
 T_jup = 3.222 
[ 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 11.2   n/a MPO384770  
diameter diameter 40.139 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 29.76 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:
[Albers, K.; Kragh, K.; Monnier, A.; Pligge, Z.; et al. (2010) Minor Planet Bull. 37, 152-158.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.048   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2307 Garuda (1957 HJ)          Discovered 1957-Apr-18 by at La Plata
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1957 HJ = 1976 YY2 = 1977 AH = 1981 WE4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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