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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0549725179801798 3.6923e-08  
a 2.383462945584363 1.0715e-08 au
q 2.252437985953134 8.6048e-08 au
i 4.957981195643629 4.9445e-06 deg
node 205.8222645180163 4.6372e-05 deg
peri 255.8842965552649 6.7031e-05 deg
M 175.7306066023039 4.6951e-05 deg
tp 2458344.421295792594
(2018-Aug-13.92129579)
0.00017541 TDB
period 1344.036409372809
3.68
9.0633e-06
2.481e-08
d
yr
n .2678498867214417 1.8062e-09 deg/d
Q 2.514487905215592 1.1304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      869  
   data-arc span      8592 days (23.52 yr)  
   first obs. used      1995-10-20  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56753  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:01:29  

Additional Information
 Earth MOID = 1.27539 au 
 Jupiter MOID = 2.5578 au 
 T_jup = 3.530 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456487.5 (2013-Jul-14.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05532408835073158 3.703e-08  
q 2.250487945917446 8.634e-08 au
tp 2457002.886980868206
(2014-Dec-11.38698087)
0.00017417 TDB
node 205.9163598469217 4.6387e-05 deg
peri 256.0845594016324 6.6709e-05 deg
i 4.957448825134417 4.9444e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      869  
   data-arc span      8592 days (23.52 yr)  
   first obs. used      1995-10-20  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56753  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:01:29  

Additional Information
 Jupiter MOID = 2.5578 au 
 T_jup = 3.530 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.371204658481944E-15 -3.176059162819785E-15 -4.469897368502156E-13 5.0139702567949E-16 -1.571226868579448E-13 -1.066388858807182E-15
q -3.176059162819785E-15 7.454602622878391E-15 8.714347304721084E-13 -6.761741885798109E-16 3.073649949762732E-13 2.638429273602581E-15
tp -4.469897368502156E-13 8.714347304721084E-13 3.033349539160409E-8 -1.853146125414443E-11 8.35779906347565E-9 -4.889535176362274E-12
node 5.0139702567949E-16 -6.761741885798109E-16 -1.853146125414443E-11 2.151798303881459E-9 -2.148474671414519E-9 -2.512997703509293E-11
peri -1.571226868579448E-13 3.073649949762732E-13 8.35779906347565E-9 -2.148474671414519E-9 4.450052664344242E-9 2.36939553746119E-11
i -1.066388858807182E-15 2.638429273602581E-15 -4.889535176362274E-12 -2.512997703509293E-11 2.36939553746119E-11 2.444697124709123E-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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