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134999 (2001 HC9)
Classification: Main-belt Asteroid          SPK-ID: 2134999
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07232467758064486 4.8788e-08  
a 3.1720318590936 2.666e-08 au
q 2.942615677609122 1.5091e-07 au
i 15.89360882686438 8.9527e-06 deg
node 49.2879252087285 1.6815e-05 deg
peri 224.8879997812468 6.4043e-05 deg
M 160.4447335471257 6.2814e-05 deg
tp 2458476.839140640617
(2018-Dec-24.33914064)
0.00035795 TDB
period 2063.501257098813
5.65
2.6015e-05
7.123e-08
d
yr
n .1744607611754709 2.1994e-09 deg/d
Q 3.401448040578078 2.8588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      10295 days (28.19 yr)  
   first obs. used      1992-11-25  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57984  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:09:21  

Additional Information
 Earth MOID = 1.9487 au 
 Jupiter MOID = 1.67278 au 
 T_jup = 3.138 
[ 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 14.39   n/a MPCxxxxx  
diameter diameter 8.971 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134999 (2001 HC9)          Discovered 2001-Apr-16 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ 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
1953-May-20 21:16 00:02 Jupiter 1.75468988658679 1.75468878077296 1.75469099241758 4.57165808430441 4.46482017836819 2434518.385974833 2.29002435950269 336.851138358747 25.5195514732382 -81.7593953650102 1894404.64007086 T 19 CATAB v2.0g-lin.ifort 2021-Jul-09 11:09:23 2021-Jul-09 11:09
1964-Apr-08 08:39 00:02 Jupiter 1.77419413067211 1.77419318541791 1.77419507593439 4.74625233438885 4.64457599344435 2438493.860186199 1.85996474275461 408.081842124642 38.4997325279635 -86.4676011642364 1962960.16757443 T 19 CATAB v2.0g-lin.ifort 2021-Jul-09 11:09:23 2021-Jul-09 11:09
2072-May-08 17:18 00:02 Jupiter 1.83064603530709 1.8306449762097 1.83064709441458 4.3387252576399 4.2307394012444 2477971.220577139 2.2695727335035 270.871489175764 24.3376146529967 -79.815492471401 1877989.42636228 T 19 CATAB v2.0g-lin.ifort 2021-Jul-09 11:09:23 2021-Jul-09 11:09
2083-Mar-26 13:51 00:03 Jupiter 1.73800538481842 1.73800445288765 1.73800631675097 4.78299225938905 4.67999022695049 2481945.077311057 2.62290444956719 348.447833310198 41.7715854662165 -87.4960098090457 1943292.688244 T 19 CATAB v2.0g-lin.ifort 2021-Jul-09 11:09:23 2021-Jul-09 11:09
2094-Jan-29 20:33 00:03 Jupiter 1.94675807243166 1.94675605113823 1.9467600937886 4.69013107082298 4.59642705955982 2485907.356351914 3.34516333688798 683.915852888794 53.0113536061473 -82.722411834393 1867704.25129967 T 19 CATAB v2.0g-lin.ifort 2021-Jul-09 11:09:23 2021-Jul-09 11:09
2191-May-14 22:04 00:07 Jupiter 1.93750505388705 1.93750150593468 1.93750860191507 3.93502418854925 3.82231236651525 2521440.419384953 7.33053637602728 645.712235594085 19.894400731471 -72.2977286990947 1747892.60097795 T 19 CATAB v2.0g-lin.ifort 2021-Jul-09 11:09:23 2021-Jul-09 11:09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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