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JPL Small-Body Database Browser
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35399 (1997 YQ1)
Classification: Main-belt Asteroid          SPK-ID: 2035399
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .159926973508827 3.1983e-08  
a 2.431009301044598 1.1225e-08 au
q 2.042225340956727 8.021e-08 au
i 4.331500888294414 5.7538e-06 deg
node 20.02861690590374 4.7616e-05 deg
peri 85.03481719250684 5.1814e-05 deg
M 286.4454931157491 2.0579e-05 deg
tp 2459283.368863175225
(2021-Mar-09.86886318)
8.0073e-05 TDB
period 1384.453448968535
3.79
9.5886e-06
2.625e-08
d
yr
n .2600304114726373 1.8009e-09 deg/d
Q 2.819793261132469 1.302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      8990 days (24.61 yr)  
   first obs. used      1995-03-23  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53064  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:48:53  

Additional Information
 Earth MOID = 1.06445 au 
 Jupiter MOID = 2.31903 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456905.5 (2014-Sep-05.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .158899402794111 3.1868e-08  
q 2.04520083906995 7.9859e-08 au
tp 2456510.779626170506
(2013-Aug-06.27962617)
7.3615e-05 TDB
node 20.13929810786232 4.7511e-05 deg
peri 84.46220201658156 5.1816e-05 deg
i 4.336573731235299 5.7582e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      8990 days (24.61 yr)  
   first obs. used      1995-03-23  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53064  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:48:53  

Additional Information
 Jupiter MOID = 2.31903 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.015596276782642E-15 -2.527687407709025E-15 -3.607901810489036E-13 6.17089737479314E-15 -9.016032620134584E-14 9.042134242726578E-17
q -2.527687407709025E-15 6.377507326561098E-15 1.070844078554831E-12 -1.665841812425462E-14 2.786032228308646E-13 1.730443874238366E-16
tp -3.607901810489036E-13 1.070844078554831E-12 5.419124300537856E-9 -3.70473538678225E-11 1.529592038941529E-9 1.773106187590277E-12
node 6.17089737479314E-15 -1.665841812425462E-14 -3.70473538678225E-11 2.257278503102475E-9 -2.260356097270073E-9 5.949427464240903E-12
peri -9.016032620134584E-14 2.786032228308646E-13 1.529592038941529E-9 -2.260356097270073E-9 2.684902717101777E-9 -5.379121462802205E-12
i 9.042134242726578E-17 1.730443874238366E-16 1.773106187590277E-12 5.949427464240903E-12 -5.379121462802205E-12 3.315650144628491E-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 15.1   n/a MPO431898  
diameter diameter 2.164 km 0.429 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.65 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]
geometric albedo albedo 0.314   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35399 (1997 YQ1)          Discovered 1997-Dec-20 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 YQ1 = 1999 FG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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