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JPL Small-Body Database Browser
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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 ]

[ 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 .1201170751816804 4.1394e-08  
a 2.926325239599761 1.661e-08 au
q 2.574823610788707 1.1833e-07 au
i 3.981343945560527 5.0124e-06 deg
node 153.6382379147565 7.0969e-05 deg
peri 144.0556547604248 7.5326e-05 deg
M 185.9501933095374 2.7215e-05 deg
tp 2459884.502230972381
(2022-Nov-01.00223097)
0.00013928 TDB
period 1828.446748671372
5.01
1.5567e-05
4.262e-08
d
yr
n .1968884247034219 1.6763e-09 deg/d
Q 3.277826868410814 1.8605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2366  
   data-arc span      26047 days (71.31 yr)  
   first obs. used      1948-10-10  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:29:22  

Additional Information
 Earth MOID = 1.56043 au 
 Jupiter MOID = 1.9231 au 
 T_jup = 3.264 
[ show covariance matrix ]

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

[ show close-approach data ]
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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