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3625 Fracastoro (1984 HZ1)
Classification: Main-belt Asteroid          SPK-ID: 2003625
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1167353934557067 3.2989e-08  
a 3.053631769346974 1.4215e-08 au
q 2.697164863283409 1.0175e-07 au
i 5.029046241275264 3.5249e-06 deg
node 222.2884316633624 4.1832e-05 deg
peri 109.0437891444202 4.4794e-05 deg
M 208.4932816393526 1.8372e-05 deg
tp 2460020.762420952292
(2023-Mar-17.26242095)
0.00010187 TDB
period 1949.051994116226
5.34
1.3609e-05
3.726e-08
d
yr
n .1847051803065098 1.2897e-09 deg/d
Q 3.410098675410539 1.5874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3074  
   data-arc span      25593 days (70.07 yr)  
   first obs. used      1951-02-27  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41492  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:07:14  

Additional Information
 Earth MOID = 1.69026 au 
 Jupiter MOID = 1.95305 au 
 T_jup = 3.220 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457286.5 (2015-Sep-21.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1149516602258535 3.2896e-08  
q 2.705051448067858 1.0107e-07 au
tp 2458068.758478871624
(2017-Nov-11.25847887)
9.8182e-05 TDB
node 222.3434703220991 4.1876e-05 deg
peri 108.3874539688933 4.4918e-05 deg
i 5.023933387619751 3.5224e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3074  
   data-arc span      25593 days (70.07 yr)  
   first obs. used      1951-02-27  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41492  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:07:14  

Additional Information
 Jupiter MOID = 1.95305 au 
 T_jup = 3.220 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.082126741012561E-15 -3.298765560020155E-15 3.111319857715925E-13 3.37345737676926E-15 4.808801925709174E-14 4.356781735223436E-16
q -3.298765560020155E-15 1.021478993961821E-14 -5.484845170743226E-13 -8.997899393271405E-15 -9.631597078737769E-14 -1.124135310497428E-15
tp 3.111319857715925E-13 -5.484845170743226E-13 9.639685595008443E-9 2.159239884147319E-11 1.614364781096615E-9 -1.302240002478204E-12
node 3.37345737676926E-15 -8.997899393271405E-15 2.159239884147319E-11 1.753597908161454E-9 -1.742644794282661E-9 -1.792553925083833E-11
peri 4.808801925709174E-14 -9.631597078737769E-14 1.614364781096615E-9 -1.742644794282661E-9 2.017648537263024E-9 1.76675508853636E-11
i 4.356781735223436E-16 -1.124135310497428E-15 -1.302240002478204E-12 -1.792553925083833E-11 1.76675508853636E-11 1.240762670975844E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.53   n/a MPCxxxxx  
diameter diameter 14.439 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.712 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.213   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3625 Fracastoro (1984 HZ1)          Discovered 1984-Apr-27 by at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1984 HZ1 = 1951 DD = 1952 HX2 = 1953 NE = 1953 PG = 1973 FH1 = 1984 JN1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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