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17736 (1998 BA12)
Classification: Main-belt Asteroid          SPK-ID: 2017736
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09432511652839988 2.6681e-08  
a 2.612238516170334 9.7386e-09 au
q 2.365838813732593 7.2434e-08 au
i 5.359450064245928 1.4394e-06 deg
node 291.3413157695466 7.6431e-06 deg
peri 316.9359566946237 1.3115e-05 deg
M 23.69119886536697 8.0952e-06 deg
tp 2459099.014917926328
(2020-Sep-06.51491793)
3.4731e-05 TDB
period 1542.118225174759
4.22
8.6237e-06
2.361e-08
d
yr
n .2334451367755565 1.3054e-09 deg/d
Q 2.858638218608075 1.0657e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2129  
   data-arc span      13018 days (35.64 yr)  
   first obs. used      1984-12-23  
   last obs. used      2020-08-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:11:21  

Additional Information
 Earth MOID = 1.35351 au 
 Jupiter MOID = 2.18851 au 
 T_jup = 3.397 
[ 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 13.77   n/a E2021B10  
diameter diameter 8.588 km 0.239 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.04 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.105   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17736 (1998 BA12)          Discovered 1998-Jan-23 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BA12 = 1984 YZ1 = 1999 JZ24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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