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4816 Connelly (1981 PK)
Classification: Main-belt Asteroid          SPK-ID: 2004816
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2723866015340664 1.0373e-08  
a 2.590299812690633 8.6019e-09 au
q 1.884736849757503 2.6659e-08 au
i 11.8307900570132 9.8898e-07 deg
node 274.5384025477703 4.6365e-06 deg
peri 84.42064963073545 8.1446e-06 deg
M 138.4224484674732 5.3372e-06 deg
tp 2458614.999184571103
(2019-May-11.49918457)
2.0998e-05 TDB
period 1522.732012675912
4.17
7.5851e-06
2.077e-08
d
yr
n .2364171745278859 1.1777e-09 deg/d
Q 3.295862775623764 1.0945e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2175  
   data-arc span      14477 days (39.64 yr)  
   first obs. used      1981-08-03  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4582  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:52:46  

Additional Information
 Earth MOID = .923125 au 
 Jupiter MOID = 2.34959 au 
 T_jup = 3.338 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.84   n/a MPCxxxxx  
diameter diameter 7.161 km 0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.8978 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.286   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4816 Connelly (1981 PK)          Discovered 1981-Aug-03 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 PK = 1987 BT1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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