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C/1983 H1 (IRAS-Araki-Alcock)
Classification: Comet          SPK-ID: 1000304
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2445467.5 (1983-May-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9898410042742818 3.8106e-05  
a 97.58255328872977 0.36603 AU
q .9913407417648754 1.8071e-07 AU
i 73.25079716352917 0.00048444 deg
node 49.10248462703545 2.393e-05 deg
peri 192.8510252976418 0.00020907 deg
M 359.9915597306886 4.7721e-05 deg
tp 2445475.754874908800
(1983-May-21.25487491)
0.00023347 JED
period 352092.434200909
963.98
1981
5.424
d
yr
n .001022458777954254 5.7529e-06 deg/d
Q 194.1737658356947 0.72834 AU
  Orbit Determination Parameters
   # obs. used (total)      316  
   data-arc span      160 days  
   first obs. used      1983-04-27  
   last obs. used      1983-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      4  
   fit RMS      1.1411  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:42:25  

Additional Information
 Earth MOID = .00583546 AU 
 T_jup = 0.408 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
diameter diameter 9.2 km 1. Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  
geometric albedo albedo 0.02   0.01 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  

[ 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
1983-May-11 12:03 < 00:01 Earth 0.0311649674571615 0.0311637978532131 0.0311661370655666 43.7570831082974 43.7551291872468 2445466.002064512 0.00251222769313791 59.8684077348508 3.80991740277749 -0.525467708259766 75997.3726807343 T 13 CATAB v2.0c-linF95 2014-Jun-13 19:42:27 2014-Jun-13 19:42

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1983.4   C/1983 H1   1983 VII   1983d 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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