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JPL Small-Body Database Browser
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49912 (1999 XY170)
Classification: Main-belt Asteroid          SPK-ID: 2049912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .130075426857314 4.383e-08  
a 2.34131703023685 1.1583e-08 au
q 2.036769218120493 1.0361e-07 au
i 6.144912289988983 5.4641e-06 deg
node 46.04831426569229 3.4622e-05 deg
peri 144.8796071335966 4.0239e-05 deg
M 63.16050149745367 1.8029e-05 deg
tp 2458370.921173350544
(2018-Sep-09.42117335)
6.5599e-05 TDB
period 1308.545303382939
3.58
9.7105e-06
2.659e-08
d
yr
n .2751146628773983 2.0416e-09 deg/d
Q 2.645864842353208 1.309e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1055  
   data-arc span      10066 days (27.56 yr)  
   first obs. used      1991-10-14  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52873  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:37  

Additional Information
 Earth MOID = 1.03985 au 
 Jupiter MOID = 2.31392 au 
 T_jup = 3.545 
[ 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 15.0   n/a MPO390040  

49912 (1999 XY170)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XY170 = 1998 RH40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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