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17328 (1176 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2017328
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1412484637811516 3.0805e-08  
a 2.258634574835117 6.9456e-09 au
q 1.939605910896662 7.0023e-08 au
i 2.242831930178322 3.6875e-06 deg
node 305.1011945348316 8.8299e-05 deg
peri 323.5883107999917 8.9286e-05 deg
M 102.0790563538604 1.2936e-05 deg
tp 2459044.938320356736
(2020-Jul-14.43832036)
4.4461e-05 TDB
period 1239.844971066769
3.39
5.7191e-06
1.566e-08
d
yr
n .290358882280463 1.3393e-09 deg/d
Q 2.577663238773571 7.9267e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1745  
   data-arc span      17174 days (47.02 yr)  
   first obs. used      1973-09-24  
   last obs. used      2020-10-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51001  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:50:25  

Additional Information
 Earth MOID = .924003 au 
 Jupiter MOID = 2.50337 au 
 T_jup = 3.607 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456872.5 (2014-Aug-03.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1415024782556626 3.0864e-08  
q 1.939208310806835 7.0189e-08 au
tp 2456564.721392236499
(2013-Sep-29.22139224)
4.5369e-05 TDB
node 305.1734006528528 8.8193e-05 deg
peri 323.6787326172921 8.9173e-05 deg
i 2.244741097423889 3.6887e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1745  
   data-arc span      17174 days (47.02 yr)  
   first obs. used      1973-09-24  
   last obs. used      2020-10-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51001  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:50:25  

Additional Information
 Jupiter MOID = 2.50337 au 
 T_jup = 3.607 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.526022259243536E-16 -2.158519946353952E-15 6.338952072292867E-14 2.123280820110234E-16 1.347654383798219E-14 -3.857690559455397E-17
q -2.158519946353952E-15 4.926452559071564E-15 -2.035907223648386E-13 1.499998995530174E-16 -4.674005491781878E-14 1.427478436055806E-16
tp 6.338952072292867E-14 -2.035907223648386E-13 2.058387757030198E-9 -6.214905657659E-14 6.082375190662552E-10 -2.574909073511361E-13
node 2.123280820110234E-16 1.499998995530174E-16 -6.214905657659E-14 7.777988649948611E-9 -7.771516715119348E-9 1.0512913168384E-11
peri 1.347654383798219E-14 -4.674005491781878E-14 6.082375190662552E-10 -7.771516715119348E-9 7.951782090867771E-9 -1.058357983990702E-11
i -3.857690559455397E-17 1.427478436055806E-16 -2.574909073511361E-13 1.0512913168384E-11 -1.058357983990702E-11 1.36064418710964E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.89   n/a MPCxxxxx  
diameter diameter 2.841 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 20.537 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.316   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17328 (1176 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1176 T-2 = 1992 AS6 = 1993 OT13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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