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100P/Hartley 1
Classification: Jupiter-family Comet          SPK-ID: 1000040
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455900.5 (2011-Dec-05.0) TDB
Reference: JPL K095/1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4172170400828409 3.1539e-07  
a 3.416167306079676 2.5882e-07 AU
q 1.990884094209341 1.0209e-06 AU
i 25.66151100521957 2.8111e-05 deg
node 37.81685002953401 4.6908e-05 deg
peri 182.0166667181864 0.00029592 deg
M 113.8094990905865 0.00014011 deg
tp 2455171.406651797300
(2009-Dec-05.90665180)
0.00093295 JED
period 2306.253937064221
6.31
0.0002621
7.176e-07
d
yr
n .1560972944975293 1.774e-08 deg/d
Q 4.841450517950011 3.6681e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.848680746229127E-9 2.839E-10
A2 [EST] -4.413766828972458E-11 1.175E-11
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      9160 days (25.08 yr)  
   first obs. used      1985-06-13  
   last obs. used      2010-07-12  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      1  
   fit RMS      .76261  
   data source      ORB  
   producer      Alan B. Chamberlin  
   solution date      2011-Nov-29 16:02:03  

Additional Information
 Earth MOID = .98467 AU 
 T_jup = 2.851 
[ 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 8. mag n/a ICQ 2003 Handbook  
comet total magnitude slope K1 25.0   n/a ICQ 2003 Handbook  

100P/Hartley 1          Discovered 1985-Jun-13 by Hartley, Malcolm at U. K. Schmidt Telescope Unit
discovered on plate/photo taken on discovery date
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
1905-Mar-07 12:25 00:18 Jupiter 0.176914373973722 0.176848669564519 0.176981256928925 7.00751829016066 6.28727319234828 2416912.017638415 18.7029420044459 2890.29672835768 177.632258095239 82.070926817979 16894.3029843718 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
1917-Jan-31 05:22 00:21 Jupiter 1.16008496304911 1.15906789250892 1.16110141214257 8.66685027408056 8.58219184978839 2421259.723628359 21.7389098968047 10611.1499219152 351.02161737237 -3.31660796861668 4575.68868670552 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
1976-Mar-07 06:31 00:04 Jupiter 1.70486323311377 1.70484423805563 1.70488222851487 9.5642747722344 9.51218678275298 2442844.771855246 4.99917777301698 435.594346199978 32.2980130136667 30.5799790568841 640966.561995385 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
1988-Feb-05 06:41 00:01 Jupiter 0.356927244252636 0.35689991989162 0.35695456883132 6.70159090482788 6.33759647659663 2447196.778595800 1.90991304363033 164.799135374136 38.3165578937878 -24.6048424826711 71261.0479396391 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
1999-Nov-24 18:30 < 00:01 Jupiter 0.758699379296026 0.758675927563548 0.758722830857648 7.1218353419944 6.96331177168559 2451507.270969179 0.788870317166627 154.605290328434 18.8339658073177 -5.35497995781968 107418.028818361 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
2083-Feb-10 15:43 00:13 Jupiter 0.636715032197603 0.636266342795566 0.637163658160974 6.7295723395143 6.5289005361702 2481901.155321350 13.2294047599238 2696.22161189086 81.049496404483 -1.0250358666953 4240.27081317174 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
2094-Dec-04 22:27 00:07 Jupiter 0.471799865948993 0.471598223445192 0.472001493279397 6.58096152218046 6.30225781382496 2486216.435789031 7.77144087884552 1226.43964593478 81.7327745725994 13.2789576753109 21844.5759280313 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
2106-Dec-03 20:10 00:13 Jupiter 1.60148635415171 1.60103274290966 1.60193987193307 9.06860233957508 9.01009172454352 2490597.340290119 13.5122159291393 6242.89913448659 166.596709819913 -13.5891813050023 50840.3961303443 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
2164-Apr-29 03:09 00:22 Earth 0.48754456993582 0.487469596129234 0.487622773501128 12.5994615048824 12.5990277408655 2511563.631354725 22.7245075882994 49998.3244686687 983.425076789254 -87.5831603196905 55499.4661397398 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
2166-Jan-30 15:38 00:26 Jupiter 1.85649819852127 1.85588745091338 1.85710880380335 10.8028004171261 10.7604833528746 2512205.152057650 26.122803993048 8236.58057442012 1265.04810607179 -5.50743733136019 7054.82490378098 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
2177-Oct-12 04:15 00:35 Jupiter 0.443496390220557 0.442748410259691 0.44424465376714 7.15177651108081 6.87954634111816 2516477.677376371 35.4316531917414 5743.94738733047 675.163164327779 -32.3939927946306 6293.62893396958 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33
2189-Aug-20 05:15 00:55 Jupiter 0.765166789633219 0.764163595547708 0.766169372656994 7.76930289347137 7.62549094460019 2520807.719386982 55.6237926223272 8150.8020193653 1194.87789487241 5.8621572988598 2176.1250336333 T K095/1 CATAB v2.0c-linF95 2011-Nov-29 16:33:02 2011-Nov-29 16:33

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1991.0   100P/1991 E1   1991 VII   1991j 
 1984.7   100P/1985 L1   1985 VII   1985f 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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