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JPL Small-Body Database Browser
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48956 (1998 QY23)
Classification: Main-belt Asteroid          SPK-ID: 2048956
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330510923763388 3.8323e-08  
a 2.407194231086094 1.0242e-08 au
q 2.086914409078068 9.0638e-08 au
i 6.24324186360721 5.0546e-06 deg
node 186.2464351317234 3.6857e-05 deg
peri 128.4641679333785 4.1788e-05 deg
M 206.1165732964897 2.0851e-05 deg
tp 2459183.615352281428
(2020-Nov-30.11535228)
8.0488e-05 TDB
period 1364.159424560861
3.73
8.706e-06
2.384e-08
d
yr
n .2638987742329956 1.6842e-09 deg/d
Q 2.72747405309412 1.1604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1997-03-05  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55246  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:38  

Additional Information
 Earth MOID = 1.07954 au 
 Jupiter MOID = 2.55023 au 
 T_jup = 3.502 
[ 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 MPO333244  

48956 (1998 QY23)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1956-Feb-14 02:58 < 00:01 Amphi 0.0380143638516476 0.0380120804154546 0.0380166483427801 4.9404057150451 4.94040568443514 2435517.623630452 0.538809821631021 350.896874480391 35.1641773166963 71.9293880564444 153774.411909428 T 27 CATAB v2.0e-lin.ifort 2019-Jul-13 02:48:42 2019-Jul-13 02:48
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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