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JPL Small-Body Database Browser
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716 Berkeley (A911 OC)
Classification: Main-belt Asteroid          SPK-ID: 2000716
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08669696599449603 3.4288e-08  
a 2.811955788374603 1.0812e-08 au
q 2.568167753011863 9.6525e-08 au
i 8.487220903480356 3.7251e-06 deg
node 145.8854643452741 2.6835e-05 deg
peri 56.81084364673822 3.5172e-05 deg
M 136.2077438403508 2.2091e-05 deg
tp 2458348.855914925818
(2018-Aug-18.35591493)
0.0001059 TDB
period 1722.309349031365
4.72
9.9336e-06
2.72e-08
d
yr
n .2090216837076717 1.2056e-09 deg/d
Q 3.055743823737342 1.175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2672  
   data-arc span      41390 days (113.32 yr)  
   first obs. used      1906-07-16  
   last obs. used      2019-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43941  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:34:58  

Additional Information
 Earth MOID = 1.57793 au 
 Jupiter MOID = 1.93161 au 
 T_jup = 3.299 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456067.5 (2012-May-20.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08426801928309338 3.4528e-08  
q 2.57793555495913 9.6653e-08 au
tp 2456623.793433979363
(2013-Nov-27.29343398)
0.00010995 TDB
node 146.026618373052 2.6879e-05 deg
peri 56.47543300346663 3.5543e-05 deg
i 8.47675963639794 3.7206e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2672  
   data-arc span      41390 days (113.32 yr)  
   first obs. used      1906-07-16  
   last obs. used      2019-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43941  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:34:58  

Additional Information
 Jupiter MOID = 1.93161 au 
 T_jup = 3.299 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.192191850300293E-15 -3.319613902236888E-15 2.560971348899824E-13 -3.617428596923864E-15 4.945354849439361E-14 -3.555594266934124E-16
q -3.319613902236888E-15 9.341860490276941E-15 -9.087344469917122E-13 9.386696313891411E-15 -1.87530824160339E-13 1.346190847814608E-15
tp 2.560971348899824E-13 -9.087344469917122E-13 1.208972578600319E-8 -1.243779778518957E-11 2.576443589367914E-9 -3.322876839609502E-12
node -3.617428596923864E-15 9.386696313891411E-15 -1.243779778518957E-11 7.224592097680813E-10 -7.167398863852108E-10 -1.971047014730099E-12
peri 4.945354849439361E-14 -1.87530824160339E-13 2.576443589367914E-9 -7.167398863852108E-10 1.263298801609836E-9 1.278257982072801E-12
i -3.555594266934124E-16 1.346190847814608E-15 -3.322876839609502E-12 -1.971047014730099E-12 1.278257982072801E-12 1.384322258887929E-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 10.7   n/a MPO492758 IRAS observations used: 3
diameter diameter 19.768 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.55 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Garlitz, J. (2011) http://eoni.com/~garlitzj/Period.htm]
geometric albedo albedo 0.170   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.860   0.068 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.11, mean=5.24, max.=5.37) deg.
U-B UB 0.351   0.068 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.11 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

716 Berkeley (A911 OC)          Discovered 1911-Jul-30 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A911 OC = 1947 CH = 1952 FA = A906 OB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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