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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201650128408053 1.4203e-08  
a 2.92604029570622 1.3749e-08 au
q 2.574432625999969 4.6857e-08 au
i 3.981824725982865 1.3172e-06 deg
node 153.6361828257059 1.1167e-05 deg
peri 144.1334342208739 1.6421e-05 deg
M 225.2386753968678 1.6771e-05 deg
tp 2459884.855325584325
(2022-Nov-01.35532558)
8.6647e-05 TDB
period 1828.179694255028
5.01
1.2885e-05
3.528e-08
d
yr
n .1969171855104198 1.3879e-09 deg/d
Q 3.277647965412472 1.5401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2780  
   data-arc span      26454 days (72.43 yr)  
   first obs. used      1948-10-10  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41086  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:10:23  

Additional Information
 Earth MOID = 1.55806 au 
 Jupiter MOID = 1.92284 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 11.60   n/a E2021B10  
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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