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JPL Small-Body Database Browser
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48991 (1998 QY47)
Classification: Main-belt Asteroid          SPK-ID: 2048991
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07085441867385393 3.4703e-08  
a 2.318662908025206 8.6876e-09 au
q 2.154375395576453 8.3094e-08 au
i 6.293422571556351 5.0688e-06 deg
node 178.1633635190312 3.3164e-05 deg
peri 250.3352918688542 4.9874e-05 deg
M 341.82940983632 3.8368e-05 deg
tp 2459065.591065543843
(2020-Aug-04.09106554)
0.00013754 TDB
period 1289.59947831644
3.53
7.2479e-06
1.984e-08
d
yr
n .2791564404709412 1.5689e-09 deg/d
Q 2.48295042047396 9.3032e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1083  
   data-arc span      8279 days (22.67 yr)  
   first obs. used      1997-04-06  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54941  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:16:34  

Additional Information
 Earth MOID = 1.17719 au 
 Jupiter MOID = 2.69219 au 
 T_jup = 3.568 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456846.5 (2014-Jul-08.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07109033229760532 3.4713e-08  
q 2.153721666643259 8.3199e-08 au
tp 2456482.957958615884
(2013-Jul-09.45795862)
0.0001339 TDB
node 178.2327975086417 3.3135e-05 deg
peri 249.4343984224004 4.9779e-05 deg
i 6.295733774728942 5.071e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1083  
   data-arc span      8279 days (22.67 yr)  
   first obs. used      1997-04-06  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54941  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:16:34  

Additional Information
 Jupiter MOID = 2.69219 au 
 T_jup = 3.568 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.204984385896633E-15 -2.875377757641526E-15 -5.457056263177769E-13 3.981958797845803E-15 -1.169918123145883E-13 -1.274739468481374E-15
q -2.875377757641526E-15 6.921998728014208E-15 1.44576462537799E-12 -9.565991195526215E-15 3.213443849194779E-13 3.293558157447165E-15
tp -5.457056263177769E-13 1.44576462537799E-12 1.792820451680156E-8 1.364062755490319E-11 4.982219913652311E-9 5.621886398546888E-12
node 3.981958797845803E-15 -9.565991195526215E-15 1.364062755490319E-11 1.097936864156499E-9 -1.086738849922334E-9 -3.540759377828441E-11
peri -1.169918123145883E-13 3.213443849194779E-13 4.982219913652311E-9 -1.086738849922334E-9 2.477950634964926E-9 3.672016028298169E-11
i -1.274739468481374E-15 3.293558157447165E-15 5.621886398546888E-12 -3.540759377828441E-11 3.672016028298169E-11 2.571521103394013E-11

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 15.2   n/a MPO344667  
diameter diameter 2.021 km 0.546 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.432   0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48991 (1998 QY47)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QY47 = 1997 GE35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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