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JPL Small-Body Database Browser
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48997 (1998 QT51)
Classification: Main-belt Asteroid          SPK-ID: 2048997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1486325881035999 3.9374e-08  
a 2.305322086918403 7.5452e-09 au
q 1.962676098727329 9.0865e-08 au
i 6.457906289692625 4.3051e-06 deg
node 316.5891995798314 3.5247e-05 deg
peri 356.086890431449 3.8168e-05 deg
M 349.7846122150473 1.4169e-05 deg
tp 2458636.778406300312
(2019-Jun-02.27840630)
5.029e-05 TDB
period 1278.485608480784
3.50
6.2766e-06
1.718e-08
d
yr
n .2815831461941802 1.3824e-09 deg/d
Q 2.647968075109477 8.6667e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1686  
   data-arc span      30778 days (84.27 yr)  
   first obs. used      1935-08-31  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47492  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:16:35  

Additional Information
 Earth MOID = .94783 au 
 Jupiter MOID = 2.61118 au 
 T_jup = 3.565 
[ 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 14.1   n/a MPO253677  
diameter diameter 3.456 km 0.465 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.55436 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.407   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48997 (1998 QT51)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QT51 = 1935 QL = 1935 SP = 1987 KH = 1991 RV18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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