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85844 (1998 YN16)
Classification: Main-belt Asteroid          SPK-ID: 2085844
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1485778193209907 6.9434e-08  
a 3.009179407069453 1.9617e-08 au
q 2.562082092821442 2.1105e-07 au
i 6.789171472613948 5.8202e-06 deg
node 291.4886552026256 4.4668e-05 deg
peri 209.061839147403 4.8861e-05 deg
M 21.68189877025847 1.6753e-05 deg
tp 2458885.667357131008
(2020-Feb-06.16735713)
8.8777e-05 TDB
period 1906.648115595106
5.22
1.8645e-05
5.105e-08
d
yr
n .1888130258831931 1.8463e-09 deg/d
Q 3.456276721317465 2.2532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      623  
   data-arc span      9514 days (26.05 yr)  
   first obs. used      1994-04-05  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:40:35  

Additional Information
 Earth MOID = 1.57798 au 
 Jupiter MOID = 1.61199 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457771.5 (2017-Jan-18.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1495475384835438 6.9489e-08  
q 2.558402575271369 2.1115e-07 au
tp 2456979.653774820731
(2014-Nov-18.15377482)
9.068e-05 TDB
node 291.5149996571328 4.4667e-05 deg
peri 209.1629709796598 4.8793e-05 deg
i 6.790180021799028 5.8215e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      623  
   data-arc span      9514 days (26.05 yr)  
   first obs. used      1994-04-05  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:40:35  

Additional Information
 Jupiter MOID = 1.61199 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.828735986077796E-15 -1.462783267922548E-14 3.286270181003164E-12 1.917862073964401E-14 7.777384219918289E-13 -3.507143111369789E-15
q -1.462783267922548E-14 4.458609088741092E-14 -1.026406422291037E-11 -5.724834898082255E-14 -2.394281898303115E-12 1.118883867144878E-14
tp 3.286270181003164E-12 -1.026406422291037E-11 8.222855850684124E-9 2.760573089832079E-11 1.81017655862137E-9 -6.761625021726459E-13
node 1.917862073964401E-14 -5.724834898082255E-14 2.760573089832079E-11 1.995181444118606E-9 -1.974357438464186E-9 1.329792457354483E-10
peri 7.777384219918289E-13 -2.394281898303115E-12 1.81017655862137E-9 -1.974357438464186E-9 2.3807405620829E-9 -1.321920234878739E-10
i -3.507143111369789E-15 1.118883867144878E-14 -6.761625021726459E-13 1.329792457354483E-10 -1.321920234878739E-10 3.388951929814446E-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 15.0   n/a MPO459397  
diameter diameter 5.405 km 0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85844 (1998 YN16)          Discovered 1998-Dec-22 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 YN16 = 2002 TF263 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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