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JPL Small-Body Database Browser
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3276 Porta Coeli (1982 RZ1)
Classification: Main-belt Asteroid          SPK-ID: 2003276
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .158791760367523 3.4783e-08  
a 3.133134808030934 1.7758e-08 au
q 2.635618816394941 1.0845e-07 au
i 2.658423461220168 3.7192e-06 deg
node 71.02031309021774 0.00010038 deg
peri 342.411147411491 0.00010142 deg
M 268.8601161693229 1.4875e-05 deg
tp 2459513.329522943857
(2021-Oct-25.82952294)
8.4325e-05 TDB
period 2025.662317090281
5.55
1.7221e-05
4.715e-08
d
yr
n .1777196509816672 1.5109e-09 deg/d
Q 3.630650799666928 2.0577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2078  
   data-arc span      16560 days (45.34 yr)  
   first obs. used      1974-04-24  
   last obs. used      2019-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4641  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:42:53  

Additional Information
 Earth MOID = 1.64707 au 
 Jupiter MOID = 1.73244 au 
 T_jup = 3.191 
[ show covariance matrix ]

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 12.4   n/a MPO347547  
diameter diameter 18.410 km 0.324 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.063   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3276 Porta Coeli (1982 RZ1)          Discovered 1982-Sep-15 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1982 RZ1 = 1974 HO1 = 1984 AA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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