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JPL Small-Body Database Browser
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17318 (2091 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2017318
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1589903395911909 3.5941e-08  
a 2.750645969337731 1.3124e-08 au
q 2.313319832577585 1.0093e-07 au
i 13.35677323243302 4.2234e-06 deg
node 179.5956460142986 1.4869e-05 deg
peri 164.8533183952104 1.8515e-05 deg
M 127.1569307838907 1.1416e-05 deg
tp 2458411.943706666772
(2018-Oct-20.44370667)
5.2253e-05 TDB
period 1666.289554912763
4.56
1.1925e-05
3.265e-08
d
yr
n .2160488847443129 1.5462e-09 deg/d
Q 3.187972106097878 1.521e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1510  
   data-arc span      17818 days (48.78 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49734  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 00:26:59  

Additional Information
 Earth MOID = 1.30936 au 
 Jupiter MOID = 2.26644 au 
 T_jup = 3.288 
[ 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 13.8   n/a PDS3 (MPO 3086)  

17318 (2091 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1975-May-21 02:40 < 00:01 Thisb 0.0429254105919883 0.0429233161824251 0.0429275055600558 4.33772554438562 4.33772550776731 2442553.611109684 0.682499821467956 283.499094214357 39.4352064789222 69.8572952062467 153002.908840732 T 32 CATAB v2.0f-lin.ifort 2020-Jan-29 00:27:29 2020-Jan-29 00:27
2036-Nov-22 00:13 < 00:01 Eunom 0.0434775828466325 0.0434719463525347 0.0434832196643069 7.79297592436305 7.79297588293207 2465019.509162159 0.674456209276863 338.330898207123 34.8091069926104 -34.0504318559736 105795.926253341 T 32 CATAB v2.0f-lin.ifort 2020-Jan-29 00:27:29 2020-Jan-29 00:27
2187-May-09 12:26 00:04 Eunom 0.0439560696670229 0.0439515725918496 0.0439606014862565 7.8474419322314 7.84744189153585 2519974.017731816 3.99417698779374 1983.81177401594 34.1180860890086 83.5602128665114 191463.957794426 T 32 CATAB v2.0f-lin.ifort 2020-Jan-29 00:27:29 2020-Jan-29 00:27

Alternate Designations
 2091 T-1 = 1999 JD94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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