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48168 (2001 HC12)
Classification: Main-belt Asteroid          SPK-ID: 2048168
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05497251742113137 3.6905e-08  
a 2.383462945364442 1.0691e-08 au
q 2.252437987077774 8.6024e-08 au
i 4.957981090929604 4.9341e-06 deg
node 205.8222643894901 4.636e-05 deg
peri 255.8842976973846 6.6892e-05 deg
M 175.7306057391286 4.681e-05 deg
tp 2458344.421299106007
(2018-Aug-13.92129911)
0.00017486 TDB
period 1344.036409186788
3.68
9.043e-06
2.476e-08
d
yr
n .2678498867585133 1.8022e-09 deg/d
Q 2.514487903651109 1.1279e-08 au
  Orbit Determination Parameters
   # obs. used (total)      873  
   data-arc span      8990 days (24.61 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56937  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:47:25  

Additional Information
 Earth MOID = 1.27539 au 
 Jupiter MOID = 2.5578 au 
 T_jup = 3.530 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456492.5 (2013-Jul-19.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05532608122249431 3.7012e-08  
q 2.250476335204472 8.6316e-08 au
tp 2457002.894669490863
(2014-Dec-11.39466949)
0.00017357 TDB
node 205.9162196705047 4.6375e-05 deg
peri 256.087311689389 6.657e-05 deg
i 4.957454242896869 4.934e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      873  
   data-arc span      8990 days (24.61 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56937  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:47:25  

Additional Information
 Jupiter MOID = 2.5578 au 
 T_jup = 3.530 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.369913814643766E-15 -3.173758356659492E-15 -4.306744633426598E-13 4.498442634883505E-16 -1.523443487045864E-13 -1.055652918254546E-15
q -3.173758356659492E-15 7.450479306670518E-15 8.425379867027447E-13 -5.558198949324971E-16 2.98873560315702E-13 2.61036494870771E-15
tp -4.306744633426598E-13 8.425379867027447E-13 3.012632764802302E-8 -1.862378116575886E-11 8.297923373737657E-9 -4.804508003112644E-12
node 4.498442634883505E-16 -5.558198949324971E-16 -1.862378116575886E-11 2.150624262704147E-9 -2.147330040479541E-9 -2.478414616182082E-11
peri -1.523443487045864E-13 2.98873560315702E-13 8.297923373737657E-9 -2.147330040479541E-9 4.431576911226678E-9 2.33735969001567E-11
i -1.055652918254546E-15 2.61036494870771E-15 -4.804508003112644E-12 -2.478414616182082E-11 2.33735969001567E-11 2.434467311952037E-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 15.7   n/a MPO267867  

48168 (2001 HC12)          Discovered 2001-Apr-18 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HC12 = 1995 UC46 = 1998 MO2 = 1999 XP241 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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