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70165 (1999 NT49)
Classification: Main-belt Asteroid          SPK-ID: 2070165
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109294790969449 3.3462e-08  
a 2.321571571426191 8.2365e-09 au
q 2.064040846321608 7.8794e-08 au
i 4.314289934057554 3.7336e-06 deg
node 260.432498750244 6.1168e-05 deg
peri 22.0322177832647 6.4851e-05 deg
M 341.6831113404942 2.2693e-05 deg
tp 2459066.238644843956
(2020-Aug-04.73864484)
8.152e-05 TDB
period 1292.026860224557
3.54
6.8758e-06
1.882e-08
d
yr
n .2786319782372259 1.4828e-09 deg/d
Q 2.579102296530774 9.1502e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1418  
   data-arc span      7738 days (21.19 yr)  
   first obs. used      1999-06-26  
   last obs. used      2020-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52986  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:01:52  

Additional Information
 Earth MOID = 1.04833 au 
 Jupiter MOID = 2.53034 au 
 T_jup = 3.565 
[ 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 14.9   n/a MPO381743  
diameter diameter 2.323 km 0.403 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.69 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.473   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70165 (1999 NT49)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NT49 = 2000 WT97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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