Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
2907 Nekrasov (1975 TT2)
Classification: Main-belt Asteroid          SPK-ID: 2002907
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09654168533362546 4.0948e-08  
a 3.013755843478673 1.4724e-08 au
q 2.72280277516518 1.208e-07 au
i 10.21463712608037 4.2531e-06 deg
node 172.4238963058909 1.8364e-05 deg
peri 199.5213846057645 2.5598e-05 deg
M 192.9906091941602 1.9972e-05 deg
tp 2459887.041185493600
(2022-Nov-03.54118549)		 0.00010931 TDB
period 1910.999287152278
5.23		 1.4004e-05
3.834e-08		 d
yr
n .1883831157972135 1.3805e-09 deg/d
Q 3.304708911792166 1.6145e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3183  
   data-arc span      24941 days (68.28 yr)  
   first obs. used      1952-04-29  
   last obs. used      2020-08-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:04:55  

Additional Information
 Earth MOID = 1.7242 au 
 Jupiter MOID = 2.15855 au 
 T_jup = 3.218 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456917.5 (2014-Sep-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09563824102687532 4.096e-08  
q 2.726409522808239 1.2075e-07 au
tp 2456068.067064093569
(2012-May-20.56706409)		 9.8376e-05 TDB
node 172.442951817223 1.8368e-05 deg
peri 200.3629137016294 2.5695e-05 deg
i 10.21191463138204 4.2521e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      3183  
   data-arc span      24941 days (68.28 yr)  
   first obs. used      1952-04-29  
   last obs. used      2020-08-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:04:55  

Additional Information
 Jupiter MOID = 2.15855 au 
 T_jup = 3.218 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.677707282722588E-15 -4.918105375116032E-15 4.687377507024931E-13 -3.97227930644174E-15 7.04046787292589E-14 4.124326020360585E-16
q -4.918105375116032E-15 1.458130732119867E-14 -1.040749029635909E-12 1.267339987824813E-14 -1.362739500318964E-13 -5.124862941674968E-16
tp 4.687377507024931E-13 -1.040749029635909E-12 9.677867488279516E-9 -1.021372059415858E-11 1.77902519934391E-9 -1.340599732969706E-12
node -3.97227930644174E-15 1.267339987824813E-14 -1.021372059415858E-11 3.373883170476845E-10 -3.332798383513908E-10 1.465785111929883E-11
peri 7.04046787292589E-14 -1.362739500318964E-13 1.77902519934391E-9 -3.332798383513908E-10 6.602149647031756E-10 -1.456344909279908E-11
i 4.124326020360585E-16 -5.124862941674968E-16 -1.340599732969706E-12 1.465785111929883E-11 -1.456344909279908E-11 1.808060774966504E-11

[ 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 11.7   n/a MPO296155  
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

[ show close-approach data ]
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 | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-18 21:03 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin