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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2154189512912182 4.6955e-08  
a 2.577081180593047 1.2963e-08 au
q 2.021929055277359 1.2007e-07 au
i 3.983236316396669 4.0604e-06 deg
node 32.14350318053397 8.5107e-05 deg
peri 231.1618385185885 8.5893e-05 deg
M 227.6484790899654 1.3816e-05 deg
tp 2459756.042145394498
(2022-Jun-25.54214539)
6.0114e-05 TDB
period 1511.090850840809
4.14
1.1401e-05
3.121e-08
d
yr
n .2382384883077592 1.7975e-09 deg/d
Q 3.132233305908736 1.5755e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      8711 days (23.85 yr)  
   first obs. used      1997-04-06  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62312  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:11  

Additional Information
 Earth MOID = 1.00759 au 
 Jupiter MOID = 1.96142 au 
 T_jup = 3.390 
[ 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 16.04   n/a MPCxxxxx  

134396 (1997 HM9)          Discovered 1997-Apr-30 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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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 00:02 Jupiter 1.94725358265486 1.94725324335023 1.94725392195993 1.76992081332875 1.50421187709044 2430155.469487120 1.49414036290095 108.116788865606 56.829139146832 -87.5348882531551 1786414.23368797 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 18:08:12 2021-Apr-13 18:08
2036-Oct-28 16:04 < 00:01 Jupiter 1.95875869639334 1.9587583281177 1.95875906466921 1.59245270920993 1.29269068882119 2464995.169151330 0.488162129349895 116.345884245464 73.0268744111254 -75.6491998613184 1886336.67625933 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 18:08:12 2021-Apr-13 18:08
2119-May-24 17:49 00:02 Jupiter 1.96004254786327 1.96004205274267 1.96004304298431 1.79817439104923 1.5392014870982 2495152.242153091 2.14663104031797 116.145576413983 66.6004097474981 78.6766724547436 1355313.12734779 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 18:08:12 2021-Apr-13 18:08

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