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395P/Catalina-NEAT (2020 H1)
Classification: Jupiter-family Comet          SPK-ID: 1001650
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2454073.5 (2006-Dec-04.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3751713678276669 4.2348e-07  
a 6.448114669901598 1.2379e-06 au
q 4.02896666928497 3.4663e-06 au
i 3.275503277055779 1.1283e-05 deg
node 224.3005761259006 0.00029107 deg
peri 90.364050218871 0.00039348 deg
M 28.90660822894087 0.00011449 deg
tp 2453593.277846670187
(2005-Aug-10.77784667)
0.0017703 TDB
period 5980.638538756263
16.37
0.0017223
4.715e-06
d
yr
n .06019424141203254 1.7334e-08 deg/d
Q 8.867262670518224 1.7024e-06 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      5542 days (15.17 yr)  
   first obs. used      2005-05-12  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .82576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jul-20 08:42:51  

Additional Information
 Earth MOID = 3.0182 au 
 Jupiter MOID = .0736505 au 
 T_jup = 2.867 
[ 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 9.9   0.5 14 2 parameter fit from 84 observations
comet total magnitude slope K1 10.0   n/a 14 2 parameter fit from 84 observations
comet nuclear magnitude M2 13.0   0.5 14 from 13 observations
comet nuclear magnitude slope K2 5.0   n/a 14 from 13 observations
comet nuclear phase coefficient PC 0.03   n/a 20 autocmod 2.3

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1949-Feb-22 23:57 2_14:27 Uranus 0.136102760322867 0.126618068136474 0.146530423323316 2.74624617802161 2.64058290385063 2432970.497621214 3747.01203554804 761080.162681933 5424.4133402163 49.0747620967312 2910.31718647131 T 36 CATAB v2.0f-lin.ifort 2020-Jul-20 08:42:53 2020-Jul-20 08:42
1971-Jan-12 06:45 00:31 Jupiter 0.108321422482326 0.108206316150559 0.108436549437776 6.1866121694154 4.75763722077548 2440963.781216295 30.8369923537478 6320.04305956162 214.906325083044 24.126994233479 33756.2609935014 T 36 CATAB v2.0f-lin.ifort 2020-Jul-20 08:42:53 2020-Jul-20 08:42
2023-Aug-05 16:49 00:14 Jupiter 0.656697766028447 0.656662290024505 0.656733242202198 6.32968065774237 6.12251707975039 2460162.200540373 13.4948280971839 1849.01516449161 200.059957738399 -19.4068866759454 143504.549779914 T 36 CATAB v2.0f-lin.ifort 2020-Jul-20 08:42:53 2020-Jul-20 08:42
2078-Mar-27 23:28 03:08 Jupiter 0.103948192668369 0.103001125211058 0.104899883465994 6.17917524186579 4.67816137173564 2480120.477861776 187.700534012254 61924.3249271206 273.945719571105 -40.1869479989356 43374.5389838136 T 36 CATAB v2.0f-lin.ifort 2020-Jul-20 08:42:53 2020-Jul-20 08:42

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2022.0   395P/2020 H1       
 2005.6   395P/2005 JD108       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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