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C/1999 Y1 (LINEAR)
Classification: Hyperbolic Comet          SPK-ID: 1000286
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2451802.5 (2000-Sep-15.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000876242360996 2.6454e-06  
a -3528.004952575548 10.65 au
q 3.091387389250513 9.1493e-07 au
i 134.7960523616605 1.5744e-05 deg
node 188.8768962241131 2.1944e-05 deg
peri 184.2643714635178 3.63e-05 deg
M -.0008938628001428878 4.0472e-06 deg
tp 2451992.546803302427
(2001-Mar-24.04680330)
0.00017712 TDB
period n/a
n/a
n/a
n/a
d
yr
n 4.703382454270793E-6 2.1298e-08 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      847  
   data-arc span      1359 days (3.72 yr)  
   first obs. used      1999-10-29  
   last obs. used      2003-07-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   norm. resid. RMS      .82806  
   source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:42:50  

Additional Information
 Earth MOID = 2.09119 au 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.6   1. 65 2 parameter fit from 374 observations, autocmod 2.5c
comet total magnitude slope K1 8.   n/a 65 autocmod 2.5c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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