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JPL Small-Body Database Browser
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109P/Swift-Tuttle
Classification: Halley-type Comet* [NEO]          SPK-ID: 1000140
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2450000.5 (1995-Oct-10.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.963225755046038 6.8344e-09  
a 26.0920694978266 8.2048e-07 au
q 0.959516155068868 1.7657e-07 au
i 113.453816997171 2.1907e-05 deg
node 139.3811920815948 2.7841e-05 deg
peri 152.9821676305871 3.2865e-05 deg
M 7.631696167124212 3.1321e-07 deg
tp 2448968.499784556297
(1992-Dec-11.99978456)
2.9166e-05 TDB
period 48681.19346262312
133.28
0.0022962
6.287e-06
d
yr
n .007395052881692476 3.4881e-10 deg/d
Q 51.22462284058444 1.6108e-06 au
  Orbit Determination Parameters
   # obs. used (total)      652  
   data-arc span      94131 days (257.72 yr)  
   first obs. used      1737-07-08  
   last obs. used      1995-03-29  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   norm. resid. RMS      1.1984  
   source      ORB  
   producer      M.S.W. Keesey  
   solution date      2001-Oct-09 15:34:49  

Additional Information
 Earth MOID = .000892135 au 
 T_jup = -0.280 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 4.5   n/a ICQ 1994 Handbook  
comet total magnitude slope K1 15.0   n/a ICQ 1994 Handbook  
comet nuclear magnitude M2 8.5   n/a ICQ 1994 Handbook  
comet nuclear magnitude slope K2 10.0   n/a ICQ 1994 Handbook  
diameter diameter 26 km n/a Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A. (2004) Comets II, pp. 223-264  

109P/Swift-Tuttle          Discovered 1862-Jul-16 by Swift, Lewis at Marathon, New York
Reference: comet.disLast Updated: 2003-08-29

[ 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
1991-Jun-11 09:40 < 00:01 Jupiter 1.84753149170408 1.84752391884309 1.8475390645791 21.1502888152817 21.1286013132229 2448418.90296 0.220055164056762 169.925970692388 85.9755939524247 -54.5209942186473 932054.467674865 T 32 CATAB v2.0a-linF95 2006-Mar-28 13:12:53 2006-Mar-28 13:12
2124-Feb-26 00:27 00:01 Saturn 1.34557544641009 1.34554320071984 1.34560769218731 18.2676026089217 18.2572818372002 2496890.51916 1.7581454949817 869.133341738707 219.496874370456 -26.3883632948709 209441.577541677 T 32 CATAB v2.0a-linF95 2006-Mar-28 13:12:53 2006-Mar-28 13:12
2126-Aug-05 15:50 00:01 Earth 0.153374949668848 0.153302476795438 0.153447422716567 58.3399707341828 58.3396729560364 2497782.15997 1.88469244939463 3554.26324111481 34.3256038118979 -3.52653921662111 40694.4507574223 T 32 CATAB v2.0a-linF95 2006-Mar-28 13:12:53 2006-Mar-28 13:12

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1992.9   109P/1992 S2   1992 XXVIII   1992t 
 1859.7   109P/1862 O1   1862 III   
 1726.4   109P/1737 N1   1737 II   
 127.0   109P/ 188 O1    188    
 -6.3   109P/ -68 Q1    -68    
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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