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17559 (1994 AR1)
Classification: Main-belt Asteroid          SPK-ID: 2017559
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1286875046988984 1.5862e-08  
a 2.367998956884047 8.7976e-09 au
q 2.063267079993045 3.6191e-08 au
i 10.50940915803447 5.4029e-07 deg
node 269.397749255901 3.5347e-06 deg
peri 211.9849422474227 7.5228e-06 deg
M 138.8902487530393 6.0752e-06 deg
tp 2458687.000598262656
(2019-Jul-22.50059826)
2.143e-05 TDB
period 1330.977417674175
3.64
7.4173e-06
2.031e-08
d
yr
n .2704779173707427 1.5073e-09 deg/d
Q 2.672730833775049 9.9297e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1839  
   data-arc span      11223 days (30.73 yr)  
   first obs. used      1989-11-22  
   last obs. used      2020-08-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:06:11  

Additional Information
 Earth MOID = 1.08685 au 
 Jupiter MOID = 2.45814 au 
 T_jup = 3.513 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457074.5 (2015-Feb-21.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1289432809747985 1.5972e-08  
q 2.062232822771149 3.6579e-08 au
tp 2457357.479803462046
(2015-Nov-30.97980346)
2.034e-05 TDB
node 269.4495209183764 3.5352e-06 deg
peri 212.203159840846 7.4585e-06 deg
i 10.50987832368386 5.4041e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1839  
   data-arc span      11223 days (30.73 yr)  
   first obs. used      1989-11-22  
   last obs. used      2020-08-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:06:11  

Additional Information
 Jupiter MOID = 2.45814 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.551097961668289E-16 -5.71922606672944E-16 2.402898608626631E-13 -1.13853746215174E-14 8.874655201700493E-14 -8.422335321527412E-16
q -5.71922606672944E-16 1.338029091932893E-15 -5.790057974409378E-13 2.638860838169846E-14 -2.13433458406117E-13 1.95129453731605E-15
tp 2.402898608626631E-13 -5.790057974409378E-13 4.137000138114059E-10 -9.496715316224013E-13 1.325769858455715E-10 8.855373726261599E-13
node -1.13853746215174E-14 2.638860838169846E-14 -9.496715316224013E-13 1.24975486591991E-11 -1.288778348991835E-11 2.236991870319629E-13
peri 8.874655201700493E-14 -2.13433458406117E-13 1.325769858455715E-10 -1.288778348991835E-11 5.562877252645232E-11 1.480284036011433E-13
i -8.422335321527412E-16 1.95129453731605E-15 8.855373726261599E-13 2.236991870319629E-13 1.480284036011433E-13 2.920389130942627E-13

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 14.06   n/a E2021B10  
diameter diameter 4.094 km 0.367 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.220   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17559 (1994 AR1)          Discovered 1994-Jan-08 by Sugie, A. at Dynic
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ 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
2068-Jun-04 13:13 < 00:01 Iris 0.039669884228068 0.0396621943367865 0.0396775742099891 5.16552585272159 5.16552582466741 2476537.051023935 0.575812069378777 395.031547118985 48.165495276977 14.071926897549 33301.0691042254 T 33 CATAB v2.0f-lin.ifort 2021-Apr-13 02:07:00 2021-Apr-13 02:07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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