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48870 (1998 HL93)
Classification: Main-belt Asteroid          SPK-ID: 2048870
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1737342343770006 2.9447e-08  
a 2.250799290244593 8.7166e-09 au
q 1.859758398817652 6.3951e-08 au
i 3.425940800079868 3.9413e-06 deg
node 248.3787159371041 5.9476e-05 deg
peri 47.08206040324198 6.0824e-05 deg
M 19.58355281996136 1.251e-05 deg
tp 2458533.404628157002
(2019-Feb-18.90462816)
4.2819e-05 TDB
period 1233.398969305462
3.38
7.1648e-06
1.962e-08
d
yr
n .2918763587119902 1.6955e-09 deg/d
Q 2.641840181671533 1.0231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1191  
   data-arc span      7888 days (21.60 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50038  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:38:34  

Additional Information
 Earth MOID = .845118 au 
 Jupiter MOID = 2.54539 au 
 T_jup = 3.605 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456874.5 (2014-Aug-05.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1736052026016174 2.9353e-08  
q 1.860382124375893 6.367e-08 au
tp 2457300.627184535928
(2015-Oct-05.12718454)
4.2859e-05 TDB
node 248.4098959089377 5.9511e-05 deg
peri 47.23860380932333 6.0868e-05 deg
i 3.424437375713433 3.9405e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1191  
   data-arc span      7888 days (21.60 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50038  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:38:34  

Additional Information
 Jupiter MOID = 2.54539 au 
 T_jup = 3.605 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.615822838573308E-16 -1.858556649348686E-15 -1.133860065433557E-13 -4.372241622555725E-15 -4.954128545360521E-14 3.484023599029738E-16
q -1.858556649348686E-15 4.053911535750561E-15 2.29848439245804E-13 8.46447805686415E-15 1.003360886215334E-13 -7.021632333622905E-16
tp -1.133860065433557E-13 2.29848439245804E-13 1.83688715708257E-9 -6.243926572642236E-12 5.573220174087422E-10 -1.365454842491937E-12
node -4.372241622555725E-15 8.46447805686415E-15 -6.243926572642236E-12 3.541596773222527E-9 -3.536905856656948E-9 -6.604300460221127E-11
peri -4.954128545360521E-14 1.003360886215334E-13 5.573220174087422E-10 -3.536905856656948E-9 3.704937571655386E-9 6.553274919475083E-11
i 3.484023599029738E-16 -7.021632333622905E-16 -1.365454842491937E-12 -6.604300460221127E-11 6.553274919475083E-11 1.552746061722041E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO436124  
diameter diameter 2.262 km 0.331 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.287   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48870 (1998 HL93)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HL93 = 1999 VT26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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