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175P/Hergenrother
Classification: Jupiter-family Comet          SPK-ID: 1000291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455465.5 (2010-Sep-26.0) TDB
Reference: JPL 62 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4221748462030159 3.4798e-07  
a 3.488839010140829 2.834e-07 au
q 2.015938937607542 1.3636e-06 au
i 6.093929260970516 1.4618e-05 deg
node 126.4354790912761 8.9003e-05 deg
peri 51.13961201642894 0.00012112 deg
M 212.8076621221998 2.5492e-05 deg
tp 2456438.700949541505
(2013-May-26.20094954)
0.00020319 TDB
period 2380.234914984541
6.52
0.00029002
7.94e-07
d
yr
n .1512455756924052 1.8429e-08 deg/d
Q 4.961739082674115 4.0305e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 6.805366064386453E-9 6.505E-10
A2 [EST] 8.623239592650262E-11 1.815E-11
  Orbit Determination Parameters
   # obs. used (total)      846  
   data-arc span      6947 days (19.02 yr)  
   first obs. used      2000-01-04  
   last obs. used      2019-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62987  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:27:46  

Additional Information
 Earth MOID = 1.02867 au 
 Jupiter MOID = .247428 au 
 T_jup = 2.968 
[ hide covariance matrix ]
Orbit Covariance (8×8)
  e q tp node peri i A1 A2
e 1.210876718550204E-13 -4.738445959685121E-13 -3.155296234197406E-11 5.867379953089981E-12 -3.051237833671599E-12 -4.42474868670318E-13 2.082505781808614E-16 -5.079327052671305E-18
q -4.738445959685121E-13 1.859272545011947E-12 1.286851816354591E-10 -2.371254053102749E-11 1.434692029546829E-11 1.69675000837062E-12 -8.280830214187859E-16 2.010594383483769E-17
tp -3.155296234197406E-11 1.286851816354591E-10 4.128615674283519E-8 -5.246877408128367E-9 1.642368161985796E-8 3.02373787849057E-10 -5.439641197081195E-14 -1.142786527692072E-16
node 5.867379953089981E-12 -2.371254053102749E-11 -5.246877408128367E-9 7.921480428496446E-9 -9.081426376116112E-9 6.54297809386284E-10 1.0288705771842E-14 -1.110906342868053E-16
peri -3.051237833671599E-12 1.434692029546829E-11 1.642368161985796E-8 -9.081426376116112E-9 1.466969475160536E-8 -5.814406344891504E-10 -4.716178561778099E-15 -5.5537341633573E-16
i -4.42474868670318E-13 1.69675000837062E-12 3.02373787849057E-10 6.54297809386284E-10 -5.814406344891504E-10 2.13688447058219E-10 -5.896331116222968E-16 -3.107322227779327E-18
A1 2.082505781808614E-16 -8.280830214187859E-16 -5.439641197081195E-14 1.0288705771842E-14 -4.716178561778099E-15 -5.896331116222968E-16 4.231880001776965E-19 -1.005254633768027E-20
A2 -5.079327052671305E-18 2.010594383483769E-17 -1.142786527692072E-16 -1.110906342868053E-16 -5.5537341633573E-16 -3.107322227779327E-18 -1.005254633768027E-20 3.293631566776866E-22

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 9.7   0.8 62 2 parameter fit from 306 observations, autocmod 2.9c
comet total magnitude slope K1 21.5   n/a 62 autocmod 2.9c
comet nuclear magnitude M2 15.6   0.5 62 from 453 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 62 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 62 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2006.9   175P/2006 A3       
 2000.4   175P/2000 C1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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