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2081 Sazava (1976 DH)
Classification: Main-belt Asteroid          SPK-ID: 2002081
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1622848171580944 1.7402e-08  
a 2.451552112155459 6.7784e-09 au
q 2.05370242588077 4.3324e-08 au
i 3.902664304612574 9.4461e-07 deg
node 66.33794510774221 6.1825e-06 deg
peri 223.7003700408608 9.8078e-06 deg
M 128.2119649705094 5.5741e-06 deg
tp 2458701.171705154099
(2019-Aug-05.67170515)
2.1134e-05 TDB
period 1402.039085711472
3.84
5.8148e-06
1.592e-08
d
yr
n .2567688758957216 1.0649e-09 deg/d
Q 2.849401798430148 7.8784e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3034  
   data-arc span      25825 days (70.70 yr)  
   first obs. used      1950-07-10  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:58:13  

Additional Information
 Earth MOID = 1.03762 au 
 Jupiter MOID = 2.31868 au 
 T_jup = 3.474 
[ 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 12.43   n/a E2021B10 IRAS observations used: 7
diameter diameter 16.669 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 66.202 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.022   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
B-V BV 0.598   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.33 deg.
U-B UB 0.223   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.33 deg.
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

2081 Sazava (1976 DH)          Discovered 1976-Feb-27 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1976 DH = 1946 LA = 1950 NH = 1950 NP = 1958 RJ = 1968 DD = 1974 XM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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