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JPL Small-Body Database Browser
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71217 (1999 YQ1)
Classification: Main-belt Asteroid          SPK-ID: 2071217
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .193195836314817 6.6494e-08  
a 2.532673250458003 1.0139e-08 au
q 2.043371323723603 1.7179e-07 au
i 16.93935194218272 6.0337e-06 deg
node 195.4684760867213 1.2629e-05 deg
peri 205.4721244088292 1.5814e-05 deg
M 309.1614086501251 8.0145e-06 deg
tp 2458808.401766661088
(2019-Nov-20.90176666)
3.3008e-05 TDB
period 1472.20121586189
4.03
8.8401e-06
2.42e-08
d
yr
n .2445317909816019 1.4683e-09 deg/d
Q 3.021975177192403 1.2097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      9721 days (26.61 yr)  
   first obs. used      1993-03-21  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48148  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:25:22  

Additional Information
 Earth MOID = 1.05937 au 
 Jupiter MOID = 2.44193 au 
 T_jup = 3.364 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457173.5 (2015-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1927811471689809 6.6221e-08  
q 2.045007708991225 1.7103e-07 au
tp 2457331.745745763391
(2015-Nov-05.24574576)
3.2536e-05 TDB
node 195.5163207753397 1.2609e-05 deg
peri 204.6791946777202 1.5838e-05 deg
i 16.9491264513916 6.0331e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      9721 days (26.61 yr)  
   first obs. used      1993-03-21  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48148  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:25:22  

Additional Information
 Jupiter MOID = 2.44193 au 
 T_jup = 3.364 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.385167104458252E-15 -1.131453357300277E-14 4.650419270291014E-14 3.837336973775616E-14 2.684381065423619E-15 -6.719050019086779E-15
q -1.131453357300277E-14 2.92499711138113E-14 -1.270761392191273E-13 -9.923789569835365E-14 -9.326036524839413E-15 1.761984242651004E-14
tp 4.650419270291014E-14 -1.270761392191273E-13 1.05858287719091E-9 9.178213982704035E-13 3.228614649333158E-10 1.18907575809292E-12
node 3.837336973775616E-14 -9.923789569835365E-14 9.178213982704035E-13 1.589914299184292E-10 -1.513734037521851E-10 3.782846129403318E-11
peri 2.684381065423619E-15 -9.326036524839413E-15 3.228614649333158E-10 -1.513734037521851E-10 2.508544509365231E-10 -3.600680620360442E-11
i -6.719050019086779E-15 1.761984242651004E-14 1.18907575809292E-12 3.782846129403318E-11 -3.600680620360442E-11 3.639784766340164E-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 15.6   n/a MPO449449  
diameter diameter 3.833 km 1.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.054   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

71217 (1999 YQ1)          Discovered 1999-Dec-16 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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