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JPL Small-Body Database Browser
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48970 (1998 QY38)
Classification: Main-belt Asteroid          SPK-ID: 2048970
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2170053574989969 4.7212e-08  
a 2.310512202345296 6.2745e-09 au
q 1.809118675869561 1.1007e-07 au
i 6.385785800525891 4.4266e-06 deg
node 172.6966943573165 3.0137e-05 deg
peri 210.3393113321424 3.1697e-05 deg
M 289.1360637173439 1.0493e-05 deg
tp 2458853.012916655600
(2020-Jan-04.51291666)
3.7661e-05 TDB
period 1282.80553924387
3.51
5.2255e-06
1.431e-08
d
yr
n .2806348967063211 1.1432e-09 deg/d
Q 2.811905728821032 7.6361e-09 au
  Orbit Determination Parameters
   # obs. used (total)      982  
   data-arc span      15421 days (42.22 yr)  
   first obs. used      1977-09-09  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57199  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:16:14  

Additional Information
 Earth MOID = .8144 au 
 Jupiter MOID = 2.64619 au 
 T_jup = 3.545 
[ 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 15.5   n/a MPO502482  
diameter diameter 2.233 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.204   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48970 (1998 QY38)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QY38 = 1977 RH11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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