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2907 Nekrasov (1975 TT2)
Classification: Main-belt Asteroid          SPK-ID: 2002907
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09668392000568447 1.9491e-08  
a 3.013517408248011 1.2759e-08 au
q 2.722158732213222 6.2402e-08 au
i 10.21496249950705 9.3178e-07 deg
node 172.4251152387288 6.7071e-06 deg
peri 199.4803933901624 1.0131e-05 deg
M 230.7244675367676 1.0769e-05 deg
tp 2459886.655925622094
(2022-Nov-03.15592562)
5.876e-05 TDB
period 1910.772506732535
5.23
1.2135e-05
3.322e-08
d
yr
n .1884054740852474 1.1965e-09 deg/d
Q 3.304876084282799 1.3992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3263  
   data-arc span      25161 days (68.89 yr)  
   first obs. used      1952-04-29  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41319  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:37:06  

Additional Information
 Earth MOID = 1.72201 au 
 Jupiter MOID = 2.15935 au 
 T_jup = 3.218 
[ 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 11.81   n/a E2021B10  
diameter diameter 16.749 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 25.1493 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.159   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2907 Nekrasov (1975 TT2)          Discovered 1975-Oct-03 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1975 TT2 = 1952 HL1 = 1954 UW1 = 1968 KT = 1970 XD = 1980 RW3 = 1980 TH7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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