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P/2019 LD2 (ATLAS)
Classification: Jupiter-family Comet          SPK-ID: 1003688
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2458988.5 (2020-May-19.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1354611025610454 4.8117e-06  
a 5.295369617184491 3.8416e-05 au
q 4.578053010372419 8.1182e-06 au
i 11.55025125900327 2.1567e-05 deg
node 179.7562391433827 0.000122 deg
peri 123.4394968613632 0.0012868 deg
M 3.114891596875334 0.00095037 deg
tp 2458949.989134232330
(2020-Apr-10.48913423)		 0.012095 TDB
period 4450.848848245189
12.19		 0.048434
0.0001326		 d
yr
n .08088344769154206 8.8018e-07 deg/d
Q 6.012686223996564 4.362e-05 au
   Orbit Determination Parameters
   # obs. used (total)      555  
   data-arc span      960 days (2.63 yr)  
   first obs. used      2018-05-09  
   last obs. used      2020-12-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .56098  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-14 17:13:11  

Additional Information
 Earth MOID = 3.57978 au 
 Jupiter MOID = .0502304 au 
 T_jup = 2.941 
[ 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
absolute magnitude H 12.2   .83056 MPO504266 autocmod 2.8
comet total magnitude M1 6.8   0.7 25 from 525 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 13.   n/a 25 autocmod 2.8
comet nuclear magnitude M2 12.0   0.1 25 from 7 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 25 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 25 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year (est.)		  New-Style 
Desig		 Roman
 Numeral 		 Year/
 Letter 
 2020.3   P/2019 LD2       
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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