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49690 (1999 TB212)
Classification: Main-belt Asteroid          SPK-ID: 2049690
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271125208343696 4.0208e-08  
a 2.167200134003341 6.719e-09 au
q 1.891721861817592 8.7738e-08 au
i 3.862492093230764 4.7141e-06 deg
node 357.773830448023 5.1345e-05 deg
peri 249.8532876365299 5.4299e-05 deg
M 178.6631651636457 1.8776e-05 deg
tp 2458022.164997273031
(2017-Sep-25.66499727)
6.0247e-05 TDB
period 1165.324709158759
3.19
5.4193e-06
1.484e-08
d
yr
n .3089267713716307 1.4366e-09 deg/d
Q 2.442678406189089 7.573e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1146  
   data-arc span      10590 days (28.99 yr)  
   first obs. used      1990-12-09  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55405  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:23:18  

Additional Information
 Earth MOID = .882236 au 
 Jupiter MOID = 2.58439 au 
 T_jup = 3.678 
[ 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 15.8   n/a MPO351185  
diameter diameter 2.108 km 0.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.190   0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49690 (1999 TB212)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TB212 = 1998 HQ37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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