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2724 Orlov (1978 RZ5)
Classification: Main-belt Asteroid          SPK-ID: 2002724
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201170746086442 4.1383e-08  
a 2.926325240205009 1.6448e-08 au
q 2.574823612998145 1.1824e-07 au
i 3.981344586824257 4.9375e-06 deg
node 153.638247915741 6.986e-05 deg
peri 144.0556432118332 7.4127e-05 deg
M 185.9501946985151 2.6915e-05 deg
tp 2459884.502224191993
(2022-Nov-01.00222419)
0.00013792 TDB
period 1828.446749238635
5.01
1.5416e-05
4.221e-08
d
yr
n .1968884246423386 1.66e-09 deg/d
Q 3.277826867411873 1.8424e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2438  
   data-arc span      26127 days (71.53 yr)  
   first obs. used      1948-10-10  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:44:04  

Additional Information
 Earth MOID = 1.56043 au 
 Jupiter MOID = 1.9231 au 
 T_jup = 3.264 
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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 11.5   n/a MPO319117  
diameter diameter 20.730 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B K   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)

2724 Orlov (1978 RZ5)          Discovered 1978-Sep-13 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1978 RZ5 = 1948 TF1 = 1956 EF = 1972 LB = 1974 YQ = 1976 GO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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