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137P/Shoemaker-Levy 2
Classification: Jupiter-family Comet          SPK-ID: 1000126
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457333.5 (2015-Nov-07.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .572069517862926 8.2387e-08  
a 4.517561189737063 8.3586e-08 au
q 1.933202138007915 4.0338e-07 au
i 4.850458802445996 6.2241e-06 deg
node 233.0730564957821 0.00013125 deg
peri 140.9935558775509 0.00012951 deg
M 243.6884491159225 3.9474e-06 deg
tp 2458466.617216653027
(2018-Dec-14.11721665)
6.1643e-05 TDB
period 3507.151223541397
9.60
9.7336e-05
2.665e-07
d
yr
n .1026474129725392 2.8488e-09 deg/d
Q 7.101920241466211 1.314e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1189  
   data-arc span      11112 days (30.42 yr)  
   first obs. used      1990-09-16  
   last obs. used      2021-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42509  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 23:13:46  

Additional Information
 Earth MOID = .936689 au 
 Jupiter MOID = .0778173 au 
 T_jup = 2.675 
[ 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
comet total magnitude M1 15.4   0.5 39 2 parameter fit from 579 observations, autocmod 2.9b
comet total magnitude slope K1 4.5   n/a 39 autocmod 2.9b
diameter diameter 5.8 km n/a DASTCOM value unverified
rotation period rot_per 7.7 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Kokotankekova, R.; Snodgrass, C.; Lacerda, P.; Green S.F.; et al. (2017) Mon. Not. Royal Ast. Soc. 471, 2974-3007.]

137P/Shoemaker-Levy 2          Discovered 1990-Oct-25 by Shoemaker, Carolyn S. at Palomar Mountain Observatory, California
discovered on plate/photo taken on discovery date as well as 11/13,15
Reference: comet.disLast Updated: 2006-10-18

[ 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
1909-Sep-14 18:29 00:01 Jupiter 1.48834450018498 1.48834226818807 1.48834673218197 5.00880975288823 4.89387040427607 2418564.269978076 1.03027737515986 138.85482892712 103.889861568509 -68.1710926101571 1553453.33726665 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
1923-Jul-23 07:41 00:01 Jupiter 1.08406150020914 1.08405701509247 1.08406598532564 9.51372358750722 9.43123814714618 2423623.820066383 1.47749805133354 222.492117658286 153.997658749166 -0.239146971765373 563868.39499297 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
1957-Jun-10 05:25 < 00:01 Jupiter 1.49476755854064 1.49476559914562 1.49476951793557 5.1434894742921 5.0321135992306 2435999.725370499 0.637580701319443 150.963974051208 95.5219610581177 83.7742126614228 1739808.62421467 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
1992-Jun-23 08:04 < 00:01 Jupiter 1.83896554594858 1.8389633520827 1.83896773981447 11.2260266880293 11.184922022711 2448796.835812147 0.699035900359207 110.897938293908 79.7086156285562 15.0015554726273 1838813.07750329 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
2006-Apr-17 08:12 00:02 Jupiter 1.17703202072064 1.17702862359115 1.17703541785053 5.06699592699827 4.92292558175298 2453842.841644125 2.37607543868977 196.529863597303 152.264026253192 55.0463666331392 946632.649311766 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
2052-Nov-23 00:23 00:02 Jupiter 1.67167445036685 1.67167349820148 1.67167540253563 5.18204743083088 5.08332897180058 2470864.515630203 1.56447426539346 187.285464950861 34.1620855463982 79.9482062484037 3724530.6792789 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
2098-Dec-06 21:15 00:01 Jupiter 1.14804766821309 1.14804431925619 1.14805101717261 5.00004359727575 4.85024208292695 2487679.385646696 1.04263201947632 207.485411072374 116.484429451554 -46.1032063857511 1196757.4820416 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
2113-Feb-02 04:08 00:01 Jupiter 1.14606140732329 1.14605736928367 1.14606544536284 9.63199569140619 9.55495661520187 2492849.671985389 1.04914464259688 201.412601690835 136.132354368556 7.04296943318435 695593.963366991 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
2147-Nov-23 04:02 00:03 Jupiter 1.45920317494195 1.45920076274274 1.45920558714332 5.16913209304918 5.05558979478845 2505561.668279949 3.23500309966881 203.087328215185 99.0711460547514 67.9833514984481 1654437.889321 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
2181-Oct-11 18:12 < 00:01 Jupiter 0.884754810057219 0.884747610359794 0.884762009799505 8.32737006194463 8.21160072707529 2517938.258669881 0.41454423770681 486.861953298313 97.3001181667333 44.1976103297066 826672.646273678 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13
2196-Feb-21 22:18 00:02 Jupiter 1.00409440889859 1.00409054310936 1.00409827468793 5.08142612197525 4.91261175252507 2523184.428852202 1.94950902875908 193.883275495453 170.672883632848 -9.35773887435643 819974.787112487 T 39 CATAB v2.0f-lin.ifort 2021-Mar-17 23:13:49 2021-Mar-17 23:13

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1999.7   137P/1998 K6       
 1990.1   137P/1990 UL3   1990 XVI   1990p 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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