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JPL Small-Body Database Browser
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2793 Valdaj (1977 QV)
Classification: Main-belt Asteroid          SPK-ID: 2002793
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03015820916399187 5.6349e-08  
a 3.166631754095079 2.0824e-08 au
q 3.071131811309741 1.8464e-07 au
i 22.09611887244471 4.8743e-06 deg
node 356.3394592251352 1.0719e-05 deg
peri 188.0557922472769 7.118e-05 deg
M 310.6535212997917 7.1298e-05 deg
tp 2458882.629459719539
(2020-Feb-03.12945972)
0.00040776 TDB
period 2058.234106552477
5.64
2.0302e-05
5.558e-08
d
yr
n .1749072172373028 1.7253e-09 deg/d
Q 3.262131696880416 2.1452e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2036  
   data-arc span      25642 days (70.20 yr)  
   first obs. used      1949-09-23  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40987  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:20:40  

Additional Information
 Earth MOID = 2.07591 au 
 Jupiter MOID = 1.7066 au 
 T_jup = 3.088 
[ 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 11.4   n/a MPO395020  
diameter diameter 27.103 km 0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.594 h n/a LCDB (Rev. 2019-January); 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:
[Warner, B.D. (2007) Minor Planet Bull. 34, 32-37.]
geometric albedo albedo 0.082   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2793 Valdaj (1977 QV)          Discovered 1977-Aug-19 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 QV = 1941 FT = 1949 SG = 1966 UH = 1969 EJ1 = 1980 BM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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