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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1486325853816808 3.9563e-08  
a 2.305322087533759 7.5988e-09 au
q 1.962676105526123 9.1379e-08 au
i 6.457906156260846 4.378e-06 deg
node 316.5891996017286 3.5296e-05 deg
peri 356.0868905879362 3.8221e-05 deg
M 349.7846116226926 1.4201e-05 deg
tp 2458636.778408418496
(2019-Jun-02.27840842)
5.0406e-05 TDB
period 1278.48560899268
3.50
6.3212e-06
1.731e-08
d
yr
n .2815831460814365 1.3922e-09 deg/d
Q 2.647968069541395 8.7282e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1655  
   data-arc span      30769 days (84.24 yr)  
   first obs. used      1935-08-31  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47567  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:39:26  

Additional Information
 Earth MOID = .94783 au 
 Jupiter MOID = 2.61118 au 
 T_jup = 3.565 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456686.5 (2014-Jan-29.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1482385075617783 3.951e-08  
q 1.964449699348351 9.1309e-08 au
tp 2456080.220893777998
(2012-Jun-01.72089378)
5.4241e-05 TDB
node 316.6489710504844 3.5299e-05 deg
peri 356.2524345498658 3.8249e-05 deg
i 6.456685424799392 4.3772e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1655  
   data-arc span      30769 days (84.24 yr)  
   first obs. used      1935-08-31  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47567  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:39:26  

Additional Information
 Jupiter MOID = 2.61118 au 
 T_jup = 3.565 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.561032731635523E-15 -3.598354985239482E-15 7.507873037671505E-13 1.401391205418072E-14 1.76518814745151E-13 -1.617201774650728E-15
q -3.598354985239482E-15 8.337253905705796E-15 -1.873030637881605E-12 -3.345326858209285E-14 -4.401514835805313E-13 3.801220685110388E-15
tp 7.507873037671505E-13 -1.873030637881605E-12 2.942072299746751E-9 1.612331449898672E-11 8.103752391050821E-10 -1.255759887403762E-12
node 1.401391205418072E-14 -3.345326858209285E-14 1.612331449898672E-11 1.24605066067862E-9 -1.233469827953409E-9 4.559824010401063E-11
peri 1.76518814745151E-13 -4.401514835805313E-13 8.103752391050821E-10 -1.233469827953409E-9 1.46300298074615E-9 -4.570275735163385E-11
i -1.617201774650728E-15 3.801220685110388E-15 -1.255759887403762E-12 4.559824010401063E-11 -4.570275735163385E-11 1.915950050736499E-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 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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