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JPL Small-Body Database Browser
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7604 Kridsadaporn (1995 QY2)
Classification: Mars-crossing Asteroid          SPK-ID: 2007604
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5738207489966733 3.0907e-08  
a 3.112735452982016 1.0324e-08 au
q 1.326583263923376 9.6716e-08 au
i 20.44878907664949 5.9259e-06 deg
node 147.2352991217022 1.2087e-05 deg
peri 266.2553310973474 1.3259e-05 deg
M 85.06147516191275 4.9304e-06 deg
tp 2458126.539493984673
(2018-Jan-08.03949398)
2.6622e-05 TDB
period 2005.911393386195
5.49
9.9791e-06
2.732e-08
d
yr
n .1794695424668191 8.9284e-10 deg/d
Q 4.898887642040656 1.6248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1668  
   data-arc span      12741 days (34.88 yr)  
   first obs. used      1984-06-23  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45622  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:29:36  

Additional Information
 Earth MOID = .522162 au 
 Jupiter MOID = 1.7586 au 
 T_jup = 2.859 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456744.5 (2014-Mar-28.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5747751808772988 3.0868e-08  
q 1.322719551178597 9.655e-08 au
tp 2456122.241943986731
(2012-Jul-13.74194399)
2.5175e-05 TDB
node 147.2704285209319 1.2096e-05 deg
peri 266.2807620805816 1.326e-05 deg
i 20.45249825083762 5.9275e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1668  
   data-arc span      12741 days (34.88 yr)  
   first obs. used      1984-06-23  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45622  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:29:36  

Additional Information
 Jupiter MOID = 1.7586 au 
 T_jup = 2.859 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.528544199248063E-16 -2.977275513988044E-15 -4.352520309830912E-13 8.237950669176896E-15 -8.49015455533547E-14 -5.377450364406742E-15
q -2.977275513988044E-15 9.321905186015097E-15 1.346624698966729E-12 -2.389425572004674E-14 2.634536995497941E-13 1.743423922803511E-14
tp -4.352520309830912E-13 1.346624698966729E-12 6.337819758783075E-10 -1.604291282267568E-11 1.52937482569402E-10 7.713671767651516E-12
node 8.237950669176896E-15 -2.389425572004674E-14 -1.604291282267568E-11 1.463047004291216E-10 -1.394718456850333E-10 1.951999214175875E-11
peri -8.49015455533547E-14 2.634536995497941E-13 1.52937482569402E-10 -1.394718456850333E-10 1.758259068887134E-10 -1.668317025474245E-11
i -5.377450364406742E-15 1.743423922803511E-14 7.713671767651516E-12 1.951999214175875E-11 -1.668317025474245E-11 3.513495195445595E-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 13.3   n/a MPO435771  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

7604 Kridsadaporn           Discovered 1995 Aug. 31 by R. H. McNaught at Siding Spring.
Kridsadaporn (San) Ritsmitchai (1964-2004) was born in Songhkla, Thailand. She and her husband Martin Callaway both lived and worked at Siding Spring Observatory. San is remembered in Coonabarabran for her caring nature and community work. She died tragically in a car accident.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15

[ show close-approach data ]
Alternate Designations
 1995 QY2 = 1984 QD1 = 1991 CF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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