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2722 Abalakin (1976 GM2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2002722
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 78 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1409986030539753 3.0925e-08  
a 3.207866722004468 1.5375e-08 au
q 2.755561995418503 9.7837e-08 au
i 1.677111112113316 3.4471e-06 deg
node 133.5410723701891 0.0001184 deg
peri 111.6465197565134 0.00011903 deg
M 227.1417101690277 1.2895e-05 deg
tp 2459774.977951361247
(2022-Jul-14.47795136)
7.6556e-05 TDB
period 2098.56729937413
5.75
1.5088e-05
4.131e-08
d
yr
n .1715456064274732 1.2333e-09 deg/d
Q 3.660171448590433 1.7543e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2800  
   data-arc span      18277 days (50.04 yr)  
   first obs. used      1970-04-11  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47415  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:44:04  

Additional Information
 Earth MOID = 1.74282 au 
 Jupiter MOID = 1.36274 au 
 T_jup = 3.176 
[ 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 12.2   n/a MPO337271  
diameter diameter 19.361 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.23 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.068   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2722 Abalakin (1976 GM2)          Discovered 1976-Apr-01 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1976 GM2 = 1970 GO2 = 1978 TS2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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