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P/2015 M2 (PANSTARRS)
Classification: Chiron-type Comet          SPK-ID: 1003400
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457418.5 (2016-Jan-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1790794426816932 1.9713e-05  
a 7.202635691315836 0.00021877 au
q 5.912791705875724 4.115e-05 au
i 3.973868185362259 3.7036e-05 deg
node 86.61162099229365 0.00063043 deg
peri 224.7873085333719 0.0029463 deg
M 7.793840386254607 0.0022453 deg
tp 2457265.643255220037
(2015-Aug-31.14325522)
0.03849 TDB
period 7060.502318964097
19.33
0.32168
0.0008807
d
yr
n .05098787362948115 2.3231e-06 deg/d
Q 8.492479676755949 0.00025795 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      873 days (2.39 yr)  
   first obs. used      2015-06-22  
   last obs. used      2017-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .47304  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-02 17:14:46  

Additional Information
 Earth MOID = 4.89985 au 
 Jupiter MOID = .811451 au 
 T_jup = 3.032 
[ show covariance matrix ]

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 6.1   0.6 11 from 129 observations, assumed slope, autocmod 2.6k
comet total magnitude slope K1 13.   n/a 11 autocmod 2.6k
comet nuclear magnitude M2 11.9   0.3 11 from 12 observations, autocmod 2.6k
comet nuclear magnitude slope K2 5.   n/a 11 autocmod 2.6k
comet nuclear phase coefficient PC 0.03   n/a 11 autocmod 2.6k

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.7   P/2015 M2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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