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34997 (1978 OP)
Classification: Main-belt Asteroid          SPK-ID: 2034997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1573718786902251 3.7803e-08  
a 2.700017202440146 1.4607e-08 au
q 2.275110422796214 1.0204e-07 au
i 14.82623477184434 4.1224e-06 deg
node 108.9953156007604 1.6182e-05 deg
peri 193.2564261372207 2.1093e-05 deg
M 160.2002700042159 1.427e-05 deg
tp 2458279.377632489408
(2018-Jun-09.87763249)
6.3645e-05 TDB
period 1620.496971053678
4.44
1.315e-05
3.6e-08
d
yr
n .2221540715166664 1.8028e-09 deg/d
Q 3.124923982084078 1.6906e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2832  
   data-arc span      15164 days (41.52 yr)  
   first obs. used      1978-07-28  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39584  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:40:24  

Additional Information
 Earth MOID = 1.26165 au 
 Jupiter MOID = 2.10417 au 
 T_jup = 3.303 
[ 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 13.3   n/a MPO365665  
diameter diameter 6.803 km 1.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.212   0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

34997 (1978 OP)          Discovered 1978-Jul-28 by Perth Observatory at Bickley
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1978 OP = 1982 KR1 = 2001 VM123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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