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85286 (1994 PA27)
Classification: Main-belt Asteroid          SPK-ID: 2085286
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2303897035845612 3.2633e-08  
a 2.234308199724212 9.6928e-09 au
q 1.719546595873196 7.4429e-08 au
i 6.286035973708453 4.1548e-06 deg
node 136.5989687927105 3.2658e-05 deg
peri 244.4700773955711 3.443e-05 deg
M 225.3378673711131 1.2868e-05 deg
tp 2459456.805846392873
(2021-Aug-30.30584639)
4.5855e-05 TDB
period 1219.868581423284
3.34
7.938e-06
2.173e-08
d
yr
n .2951137569097561 1.9204e-09 deg/d
Q 2.749069803575228 1.1926e-08 au
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      9446 days (25.86 yr)  
   first obs. used      1994-08-12  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5846  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:27  

Additional Information
 Earth MOID = .733017 au 
 Jupiter MOID = 2.72681 au 
 T_jup = 3.596 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457318.5 (2015-Oct-23.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2292949708942782 3.256e-08  
q 1.722796668457616 7.4164e-08 au
tp 2457015.859980566908
(2014-Dec-24.35998057)
3.5502e-05 TDB
node 136.6495949794353 3.2611e-05 deg
peri 244.3227041837505 3.4415e-05 deg
i 6.288378630505449 4.1572e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      9446 days (25.86 yr)  
   first obs. used      1994-08-12  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5846  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:01:27  

Additional Information
 Jupiter MOID = 2.72681 au 
 T_jup = 3.596 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.060128507431947E-15 -2.402623670938601E-15 -3.345509623846747E-13 5.64922420667801E-15 -9.116123572211884E-14 3.799018610045431E-16
q -2.402623670938601E-15 5.500228595176927E-15 8.936412978712828E-13 -1.425055614189244E-14 2.483871117844719E-13 -5.413998684394507E-16
tp -3.345509623846747E-13 8.936412978712828E-13 1.260425340134886E-9 -2.135582199733654E-11 4.008912069525296E-10 1.887540135527296E-13
node 5.64922420667801E-15 -1.425055614189244E-14 -2.135582199733654E-11 1.063449311751111E-9 -1.062795547476165E-9 1.030105750266077E-11
peri -9.116123572211884E-14 2.483871117844719E-13 4.008912069525296E-10 -1.062795547476165E-9 1.184407908787488E-9 -1.016831746096654E-11
i 3.799018610045431E-16 -5.413998684394507E-16 1.887540135527296E-13 1.030105750266077E-11 -1.016831746096654E-11 1.728262016111679E-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 16.6   n/a MPO417412  
diameter diameter 2.156 km 0.395 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85286 (1994 PA27)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2095-Sep-21 23:57 00:02 Iris 0.0461393693077253 0.0461336191204191 0.0461451231967722 4.12317071633264 4.12317068611433 2486507.498207740 1.93210409476549 715.467637201885 32.1721933107345 66.5096275279274 196699.008302196 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 21:01:28 2020-Nov-12 21:01

Alternate Designations
 1994 PA27 = 2001 XM28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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