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C/2015 O1 (PANSTARRS)
Classification: Comet          SPK-ID: 1003402
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458161.5 (2018-Feb-12.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .99999427198452 2.7912e-06  
a 651122.2501018019 3.1729e+05 au
q 3.729638327984406 1.9156e-06 au
i 127.2110782108642 7.7288e-06 deg
node 299.8558487408007 8.831e-06 deg
peri 89.5938608209204 3.1534e-05 deg
M 359.9999999868135 9.6387e-09 deg
tp 2458168.529421667023
(2018-Feb-19.02942167)
0.00015239 TDB
period 191907625237.3228
525414442.81
1.4027e+11
3.84e+08
d
yr
n 1.875902531516428E-9 1.3712e-09 deg/d
Q 1302240.770565276 6.3458e+05 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 8.217004081897122E-8 1.35E-9
A2 [EST] -3.691329520259353E-8 1.397E-9
A3 [EST] 6.356835680181972E-9 3.276E-10
ALN [SET] .0408373333128795 n/a
NK [SET] 2.6 n/a
NM [SET] 2. n/a
NN [SET] 3. n/a
R0 [SET] 5. n/a
  Orbit Determination Parameters
   # obs. used (total)      3677  
   data-arc span      1740 days (4.76 yr)  
   first obs. used      2015-06-15  
   last obs. used      2020-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .45892  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 23:13:12  

Additional Information
 Earth MOID = 3.22225 au 
 Jupiter MOID = 1.26839 au 
 T_jup = -1.448 
 Nongrav. accels. using CO driven g(r) 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.2   01. 50 2 parameter fit from 1435 observations, autocmod 2.9b
comet total magnitude slope K1 8.5   n/a 50 autocmod 2.9b
comet nuclear magnitude M2 10.0   0.7 50 from 2423 observations, autocmod 2.9b
comet nuclear magnitude slope K2 5.   n/a 50 autocmod 2.9b
comet nuclear phase coefficient PC 0.03   n/a 50 autocmod 2.9b

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2018.1   C/2015 O1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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