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146291 (2001 HT12)
Classification: Main-belt Asteroid          SPK-ID: 2146291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146430339172046 4.6717e-08  
a 2.228907355678238 1.0559e-08 au
q 1.902527695603206 1.0568e-07 au
i 1.990830423430122 4.3543e-06 deg
node 115.1347451017969 0.00014597 deg
peri 62.49540310340991 0.00014712 deg
M 297.0701776118167 2.2895e-05 deg
tp 2459212.966497327260
(2020-Dec-29.46649733)
7.8425e-05 TDB
period 1215.448195070327
3.33
8.6372e-06
2.365e-08
d
yr
n .2961870373909026 2.1048e-09 deg/d
Q 2.555287015753271 1.2106e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      6859 days (18.78 yr)  
   first obs. used      2001-04-16  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54968  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:36:14  

Additional Information
 Earth MOID = .907436 au 
 Jupiter MOID = 2.40482 au 
 T_jup = 3.629 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO251282  

146291 (2001 HT12)          Discovered 2001-Apr-18 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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