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134396 (1997 HM9)
Classification: Main-belt Asteroid          SPK-ID: 2134396
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2153353400028085 4.6563e-08  
a 2.576965651181455 1.2923e-08 au
q 2.022053876508738 1.1917e-07 au
i 3.983332190738313 4.011e-06 deg
node 32.13601184141262 8.5042e-05 deg
peri 231.1903591370044 8.582e-05 deg
M 274.3092768328406 1.3992e-05 deg
tp 2459756.160446237878
(2022-Jun-25.66044624)
6.0127e-05 TDB
period 1510.98923967604
4.14
1.1366e-05
3.112e-08
d
yr
n .2382545093949081 1.7922e-09 deg/d
Q 3.131877425854173 1.5706e-08 au
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      8778 days (24.03 yr)  
   first obs. used      1997-04-06  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62644  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:13:28  

Additional Information
 Earth MOID = 1.00945 au 
 Jupiter MOID = 1.96066 au 
 T_jup = 3.390 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457251.5 (2015-Aug-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2159660878069631 4.6463e-08  
q 2.01959332337912 1.1897e-07 au
tp 2456735.658039905084
(2014-Mar-19.15803991)
5.1669e-05 TDB
node 32.1595819566239 8.5002e-05 deg
peri 231.2556816471375 8.5777e-05 deg
i 3.985498271766865 4.0125e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      8778 days (24.03 yr)  
   first obs. used      1997-04-06  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62644  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:13:28  

Additional Information
 Jupiter MOID = 1.96066 au 
 T_jup = 3.390 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.158818195370683E-15 -5.50814056068189E-15 1.210454940611909E-12 1.234469872932615E-14 2.405326722412327E-13 -3.534394028102026E-15
q -5.50814056068189E-15 1.415362077389368E-14 -3.029051497457581E-12 -3.289568428557425E-14 -5.933567828374916E-13 9.112619074430227E-15
tp 1.210454940611909E-12 -3.029051497457581E-12 2.669733106632953E-9 1.454424563872566E-11 6.395334706351927E-10 -4.161570564984087E-12
node 1.234469872932615E-14 -3.289568428557425E-14 1.454424563872566E-11 7.225387823580828E-9 -7.205093254289704E-9 -4.532739370239186E-11
peri 2.405326722412327E-13 -5.933567828374916E-13 6.395334706351927E-10 -7.205093254289704E-9 7.357777328035705E-9 4.428200469604959E-11
i -3.534394028102026E-15 9.112619074430227E-15 -4.161570564984087E-12 -4.532739370239186E-11 4.428200469604959E-11 1.610011651611438E-11

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 16.04   n/a MPCxxxxx  

134396 (1997 HM9)          Discovered 1997-Apr-30 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
1941-Jun-09 23:16 00:01 Jupiter 1.94725358920145 1.94725325273388 1.94725392566957 1.76992067667421 1.50421171726898 2430155.469521393 1.48531665648593 107.60968593721 56.6251110787606 -87.7847707256274 1795250.16879964 T 19 CATAB v2.0g-lin.ifort 2021-Jul-09 01:13:30 2021-Jul-09 01:13
2036-Oct-28 16:04 < 00:01 Jupiter 1.95875870113704 1.95875833570609 1.95875906656822 1.59245270925002 1.29269068968071 2464995.169145000 0.481546933634245 116.048718862892 72.0704336879108 -75.7872360731316 1910168.18319949 T 19 CATAB v2.0g-lin.ifort 2021-Jul-09 01:13:30 2021-Jul-09 01:13
2119-May-24 17:49 00:02 Jupiter 1.96004256672849 1.9600420829677 1.96004305048972 1.79817454109136 1.53920166508741 2495152.242103051 2.12730937146276 114.815510101565 65.6929417428114 79.3737413538492 1378229.43008073 T 19 CATAB v2.0g-lin.ifort 2021-Jul-09 01:13:30 2021-Jul-09 01:13

Alternate Designations
 1997 HM9 = 2001 FE161 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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