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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1332841123092071 3.2622e-08  
a 2.407731538790447 8.605e-09 au
q 2.086819177963881 7.9377e-08 au
i 6.242846718307869 4.5058e-06 deg
node 186.2385542950431 3.6461e-05 deg
peri 128.3641425668431 4.0795e-05 deg
M 311.7995109671212 1.8255e-05 deg
tp 2459183.208799071132
(2020-Nov-29.70879907)
6.94e-05 TDB
period 1364.616189282656
3.74
7.3155e-06
2.003e-08
d
yr
n .2638104419596859 1.4143e-09 deg/d
Q 2.728643899617013 9.7519e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1011  
   data-arc span      8505 days (23.29 yr)  
   first obs. used      1997-03-05  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53772  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:50:43  

Additional Information
 Earth MOID = 1.08029 au 
 Jupiter MOID = 2.55034 au 
 T_jup = 3.501 
[ 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 29 CATAB v2.0f-lin.ifort 2020-Jun-23 21:51:02 2020-Jun-23 21:51
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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