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JPL Small-Body Database Browser
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6709 Hiromiyuki (1989 CD)
Classification: Main-belt Asteroid          SPK-ID: 2006709
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1599837775845081 3.1691e-08  
a 2.350176199038992 7.6532e-09 au
q 1.974186132727533 7.362e-08 au
i 1.827153724501654 3.6569e-06 deg
node 98.97251755818093 0.00013389 deg
peri 343.6771305861925 0.00013467 deg
M 182.0119068305149 1.5547e-05 deg
tp 2459251.135135163441
(2021-Feb-05.63513516)
5.8277e-05 TDB
period 1315.979313491492
3.60
6.4281e-06
1.76e-08
d
yr
n .2735605311643278 1.3362e-09 deg/d
Q 2.726166265350451 8.8775e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1695  
   data-arc span      23361 days (63.96 yr)  
   first obs. used      1955-09-18  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49781  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:55:23  

Additional Information
 Earth MOID = .990167 au 
 Jupiter MOID = 2.49055 au 
 T_jup = 3.540 
[ 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 13.9   n/a MPO337311  
diameter diameter 3.975 km 0.519 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 6.828 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pray, D.P.; Galad, A.; Husark, M.; Oey, J. (2008) Minor Planet Bull. 35, 34-37.]
geometric albedo albedo 0.338   0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

6709 Hiromiyuki           Discovered 1989 Feb. 2 by M. Arai and H. Mori at Yorii.
Hiroyuki (b. 1991) and Miyuki Mori (b. 1993) are the son and daughter of the second discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1926-Nov-06 07:22 00:01 Juno 0.0447152589058905 0.044711861320402 0.0447186576140365 4.77625563098299 4.77625557401871 2424825.807181201 1.1156541655283 394.300216977583 22.0218977246228 -64.7567127334176 274652.552952303 T 29 CATAB v2.0f-lin.ifort 2019-Sep-24 00:55:30 2019-Sep-24 00:55
2088-Jan-21 07:56 < 00:01 Eunom 0.0171017017406295 0.0171007513347764 0.017102654156809 4.66471430954348 4.66471413357717 2483706.830628749 0.776652685132414 344.301868844785 24.4513152871587 83.2091426762736 103817.523349018 T 29 CATAB v2.0f-lin.ifort 2019-Sep-24 00:55:30 2019-Sep-24 00:55
2130-Dec-11 20:57 < 00:01 Iris 0.0306615212359294 0.030655955329879 0.030667089518818 3.40116168615874 3.4011616310333 2499371.372647015 0.965338497709121 510.797605493176 35.7771304237383 -57.3306592194379 107950.786937782 T 29 CATAB v2.0f-lin.ifort 2019-Sep-24 00:55:30 2019-Sep-24 00:55

Alternate Designations
 1989 CD = 1955 SX = 1973 UM3 = 1991 RX7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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