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70121 (1999 LY34)
Classification: Main-belt Asteroid          SPK-ID: 2070121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .137135241731568 2.9712e-08  
a 2.335292683245323 8.4825e-09 au
q 2.015041756614513 7.1988e-08 au
i 4.959811681312432 3.3936e-06 deg
node 70.60448467859565 4.4508e-05 deg
peri 191.1121582872081 4.7191e-05 deg
M 23.27805738699275 1.531e-05 deg
tp 2459116.214156279522
(2020-Sep-23.71415628)
5.5488e-05 TDB
period 1303.498107033928
3.57
7.1021e-06
1.944e-08
d
yr
n .2761799177592744 1.5048e-09 deg/d
Q 2.655543609876132 9.6458e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1128  
   data-arc span      9240 days (25.30 yr)  
   first obs. used      1995-03-28  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51544  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:47:34  

Additional Information
 Earth MOID = .998142 au 
 Jupiter MOID = 2.39994 au 
 T_jup = 3.550 
[ 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 15.51   n/a E2021B10  
diameter diameter 2.292 km 0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.280   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70121 (1999 LY34)          Discovered 1999-Jun-13 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 LY34 = 2002 CG142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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