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3189 Penza (1978 RF6)
Classification: Main-belt Asteroid          SPK-ID: 2003189
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1980804194967055 4.068e-08  
a 3.094784335028781 1.6339e-08 au
q 2.481768155694448 1.2914e-07 au
i 8.225435942903724 4.2576e-06 deg
node 177.5355107655614 2.5189e-05 deg
peri 189.6898836383585 2.66e-05 deg
M 231.2988249347659 1.0451e-05 deg
tp 2459711.425387005986
(2022-May-11.92538701)
6.1161e-05 TDB
period 1988.584324831779
5.44
1.5748e-05
4.312e-08
d
yr
n .1810333087235079 1.4336e-09 deg/d
Q 3.707800514363115 1.9575e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2050  
   data-arc span      23237 days (63.62 yr)  
   first obs. used      1956-11-03  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4827  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:54:33  

Additional Information
 Earth MOID = 1.48085 au 
 Jupiter MOID = 1.75331 au 
 T_jup = 3.178 
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Orbital Elements at Epoch 2456974.5 (2014-Nov-13.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978345200141547 4.0719e-08  
q 2.482922858566356 1.2926e-07 au
tp 2457724.657750792390
(2016-Dec-02.15775079)
5.2654e-05 TDB
node 177.5571600794667 2.5193e-05 deg
peri 190.1356576111495 2.6605e-05 deg
i 8.224154565552684 4.2572e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2050  
   data-arc span      23237 days (63.62 yr)  
   first obs. used      1956-11-03  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4827  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:54:33  

Additional Information
 Jupiter MOID = 1.75331 au 
 T_jup = 3.178 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.658042238857763E-15 -5.237070198545103E-15 -2.765279781866444E-14 -5.543257037100508E-15 4.756785207486101E-14 2.537983978136421E-16
q -5.237070198545103E-15 1.670789443739873E-14 3.852952424174392E-13 1.792694527595279E-14 -1.143458499162115E-13 -8.426055752977643E-17
tp -2.765279781866444E-14 3.852952424174392E-13 2.772411146049624E-9 -3.996821865494022E-12 4.606236092881484E-10 1.811603362715349E-12
node -5.543257037100508E-15 1.792694527595279E-14 -3.996821865494022E-12 6.346927796504381E-10 -6.286663183650379E-10 2.904362653716833E-11
peri 4.756785207486101E-14 -1.143458499162115E-13 4.606236092881484E-10 -6.286663183650379E-10 7.078194252330583E-10 -2.845860672166822E-11
i 2.537983978136421E-16 -8.426055752977643E-17 1.811603362715349E-12 2.904362653716833E-11 -2.845860672166822E-11 1.812398083940201E-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 12.8   n/a MPO435728  
diameter diameter 10.707 km 1.998 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.136   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

3189 Penza (1978 RF6)          Discovered 1978-Sep-13 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1978 RF6 = 1981 EE25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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