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146509 (2001 SY74)
Classification: Main-belt Asteroid          SPK-ID: 2146509
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129042272758498 3.7281e-08  
a 2.765159695741747 1.3812e-08 au
q 2.408337204063035 1.047e-07 au
i 12.25065375741744 4.3749e-06 deg
node 359.7484984475324 2.0398e-05 deg
peri 85.40240521975154 2.9665e-05 deg
M 11.79455671043258 1.9097e-05 deg
tp 2459145.475275582582
(2020-Oct-22.97527558)
8.9182e-05 TDB
period 1679.495149889698
4.60
1.2584e-05
3.445e-08
d
yr
n .2143501277890818 1.6061e-09 deg/d
Q 3.121982187420459 1.5595e-08 au
  Orbit Determination Parameters
   # obs. used (total)      795  
   data-arc span      7068 days (19.35 yr)  
   first obs. used      2001-09-11  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51809  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:29:52  

Additional Information
 Earth MOID = 1.46108 au 
 Jupiter MOID = 2.15571 au 
 T_jup = 3.295 
[ show covariance matrix ]

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 15.3   n/a MPO493833  

146509 (2001 SY74)          Discovered 2001-Sep-19 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ 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
2022-Jan-20 06:16 < 00:01 Hygie 0.0315944156135866 0.0315904010902837 0.0315984301416413 5.25230797318624 5.25230774035464 2459599.760956485 0.810760526158353 201.056986571054 68.766681621179 -6.27846831119674 24519.6882259162 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 10:29:54 2021-Feb-24 10:29
2026-Sep-19 04:30 < 00:01 Thisb 0.0322751781570461 0.0322729475959209 0.0322774090573828 6.20455738031986 6.20455734627157 2461302.687537663 0.555251107297918 255.224658265854 77.3973957233351 -70.8296886613131 59235.393784074 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 10:29:54 2021-Feb-24 10:29
2026-Sep-19 21:56 00:01 Iris 0.0424901870268804 0.0424869180220199 0.0424934562715912 4.2692656962566 4.26926566456595 2461303.413849259 1.46293987086491 235.188575775565 56.3970889866385 47.9698432218176 85610.2419515889 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 10:29:54 2021-Feb-24 10:29
2031-Apr-25 18:13 < 00:01 Thisb 0.0354137629860153 0.0354115214462404 0.0354160049866931 6.10534012588318 6.10534009434818 2462982.259331712 0.578183984545172 301.81348984751 77.7428627220392 74.0198258979398 65673.1357168297 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 10:29:54 2021-Feb-24 10:29
2035-Dec-02 18:56 < 00:01 Thisb 0.0274415461837563 0.0274399574234493 0.0274431349762436 6.12619808444185 6.12619804388398 2464664.288621066 0.614301073294176 354.751926298923 78.4765335355576 88.2231656510224 52273.4941083449 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 10:29:54 2021-Feb-24 10:29
2040-Jul-11 02:40 < 00:01 Thisb 0.0310473274587325 0.0310414985881536 0.0310531573267813 6.00134222707732 6.00134219048398 2466346.611066697 0.665239599240034 409.280848804805 78.6881353831107 45.8512684393962 43072.1922625537 T 21 CATAB v2.0f-lin.ifort 2021-Feb-24 10:29:54 2021-Feb-24 10:29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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