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4049 Noragal' (1973 QD2)
Classification: Main-belt Asteroid          SPK-ID: 2004049
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .274192343240835 3.3793e-08  
a 3.068466001420703 1.435e-08 au
q 2.227116118336325 1.0641e-07 au
i 2.383133299206127 3.4332e-06 deg
node 97.32289622561872 9.9867e-05 deg
peri 217.5882165729493 0.00010004 deg
M 256.7636020849186 7.3588e-06 deg
tp 2459563.503043398532
(2021-Dec-15.00304340)
4.2062e-05 TDB
period 1963.271672750437
5.38
1.3772e-05
3.771e-08
d
yr
n .1833673887300883 1.2863e-09 deg/d
Q 3.909815884505082 1.8284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2538  
   data-arc span      28756 days (78.73 yr)  
   first obs. used      1941-10-19  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48664  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:54:54  

Additional Information
 Earth MOID = 1.21395 au 
 Jupiter MOID = 1.40485 au 
 T_jup = 3.171 
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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 12.4   n/a MPO502192  
diameter diameter 19.489 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.2 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.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.061   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4049 Noragal' (1973 QD2)          Discovered 1973-Aug-31 by Smirnova, T. M. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1973 QD2 = 1935 RK = 1941 UY = 1957 TJ = 1977 EM3 = 1979 VW2 = 1981 AR2 = 1984 SE4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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