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245075 (2004 HB12)
Classification: Main-belt Asteroid          SPK-ID: 2245075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1022676516110567 6.7665e-08  
a 3.183220429005488 3.4085e-08 au
q 2.857679951170757 2.3223e-07 au
i 17.30382114778497 8.7026e-06 deg
node 214.31007849 1.5926e-05 deg
peri 50.98947670197451 3.8869e-05 deg
M 302.125580629912 3.563e-05 deg
tp 2459533.989867393325
(2021-Nov-15.48986739)
0.00020601 TDB
period 2074.428626123677
5.68
3.3318e-05
9.122e-08
d
yr
n .1735417625202676 2.7873e-09 deg/d
Q 3.508760906840219 3.757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      7526 days (20.61 yr)  
   first obs. used      2000-09-22  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51139  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:08:56  

Additional Information
 Earth MOID = 1.8752 au 
 Jupiter MOID = 1.57824 au 
 T_jup = 3.120 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457717.5 (2016-Nov-25.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017797387177343 6.7991e-08  
q 2.86038344250412 2.3319e-07 au
tp 2457454.096710040469
(2016-Mar-06.59671004)
0.00020377 TDB
node 214.33985763061 1.5923e-05 deg
peri 50.31392162947442 3.8845e-05 deg
i 17.30250851262335 8.7024e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      7526 days (20.61 yr)  
   first obs. used      2000-09-22  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51139  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:08:56  

Additional Information
 Jupiter MOID = 1.57824 au 
 T_jup = 3.120 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.622814822991258E-15 -1.575266039865407E-14 -6.250403699009592E-12 -2.747649007199725E-14 -1.042694805890143E-12 1.31680046315551E-14
q -1.575266039865407E-14 5.437682469651361E-14 1.977530287747861E-11 9.032211563213361E-14 3.30317939746361E-12 -3.354839354111729E-14
tp -6.250403699009592E-12 1.977530287747861E-11 4.152141112069684E-8 6.228803589069883E-11 7.232410070248423E-9 -6.429653399403761E-11
node -2.747649007199725E-14 9.032211563213361E-14 6.228803589069883E-11 2.535505564085855E-10 -2.311300137688771E-10 -9.212166210610153E-12
peri -1.042694805890143E-12 3.30317939746361E-12 7.232410070248423E-9 -2.311300137688771E-10 1.50895928677936E-9 -1.612904453981012E-12
i 1.31680046315551E-14 -3.354839354111729E-14 -6.429653399403761E-11 -9.212166210610153E-12 -1.612904453981012E-12 7.573157027191533E-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 15.57   n/a MPCxxxxx  
diameter diameter 3.741 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

245075 (2004 HB12)          Discovered 2004-Apr-19 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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