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136389 (2004 HJ40)
Classification: Main-belt Asteroid          SPK-ID: 2136389
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2528888480108621 4.1331e-08  
a 2.722464646912289 1.208e-08 au
q 2.033983698604342 1.1523e-07 au
i 12.19491916331427 4.7202e-06 deg
node 206.2462557849102 1.7477e-05 deg
peri 199.0825495379972 1.9272e-05 deg
M 271.8898137462427 8.8939e-06 deg
tp 2459002.073844761314
(2020-Jun-01.57384476)
4.2115e-05 TDB
period 1640.74768492398
4.49
1.092e-05
2.99e-08
d
yr
n .2194121639224983 1.4604e-09 deg/d
Q 3.410945595220236 1.5135e-08 au
  Orbit Determination Parameters
   # obs. used (total)      869  
   data-arc span      11340 days (31.05 yr)  
   first obs. used      1988-10-13  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51096  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:03:01  

Additional Information
 Earth MOID = 1.04589 au 
 Jupiter MOID = 2.01715 au 
 T_jup = 3.279 
[ 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 15.4   n/a MPO412865  
diameter diameter 5.112 km 0.229 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.030   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

136389 (2004 HJ40)          Discovered 2004-Apr-19 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 2004 HJ40 = 1988 TS3 = 2004 GR48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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