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27962 (1997 SY1)
Classification: Main-belt Asteroid          SPK-ID: 2027962
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814285979426148 4.9207e-08  
a 2.746897425019617 1.4715e-08 au
q 2.248531676506128 1.3477e-07 au
i 1.656348523541038 5.6899e-06 deg
node 25.82139577036254 0.00015368 deg
peri 4.785732583355745 0.00015431 deg
M 348.0800910891728 1.5892e-05 deg
tp 2459055.559533330294
(2020-Jul-25.05953333)
7.3683e-05 TDB
period 1662.884519268557
4.55
1.3362e-05
3.658e-08
d
yr
n .2164912811614549 1.7396e-09 deg/d
Q 3.245263173533105 1.7385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      575  
   data-arc span      7560 days (20.70 yr)  
   first obs. used      1997-09-23  
   last obs. used      2018-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55675  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:06:26  

Additional Information
 Earth MOID = 1.25403 au 
 Jupiter MOID = 2.1983 au 
 T_jup = 3.323 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456303.5 (2013-Jan-11.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848919651649827 4.9907e-08  
q 2.23760478354514 1.3731e-07 au
tp 2455724.392731022606
(2011-Jun-11.89273102)
5.725e-05 TDB
node 26.01164741595557 0.00015248 deg
peri 3.645042395775334 0.00015308 deg
i 1.666748217713069 5.706e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      575  
   data-arc span      7560 days (20.70 yr)  
   first obs. used      1997-09-23  
   last obs. used      2018-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55675  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:06:26  

Additional Information
 Jupiter MOID = 2.1983 au 
 T_jup = 3.323 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.490693355130988E-15 -6.826447257700998E-15 -5.125485636526183E-13 -5.51400584252755E-15 -9.967254897793311E-14 4.892476040662902E-16
q -6.826447257700998E-15 1.88551322368973E-14 1.660195117623536E-12 1.22151473578173E-14 3.412803751623133E-13 -1.308631094917321E-15
tp -5.125485636526183E-13 1.660195117623536E-12 3.27756061825025E-9 -1.166213454545868E-11 7.9414823144665E-10 -3.957141059764621E-13
node -5.51400584252755E-15 1.22151473578173E-14 -1.166213454545868E-11 2.324921332528778E-8 -2.324160534613014E-8 -8.029535715016329E-11
peri -9.967254897793311E-14 3.412803751623133E-13 7.9414823144665E-10 -2.324160534613014E-8 2.343398707743141E-8 8.017170953188077E-11
i 4.892476040662902E-16 -1.308631094917321E-15 -3.957141059764621E-13 -8.029535715016329E-11 8.017170953188077E-11 3.255816205830461E-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 15.6   n/a MPO299158  
rotation period rot_per 5.291 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Masiero, J.; Jedicke, R.; Durecy, J.; Gwyn, S.; et al. (2009) Icarus 204, 145-171.]

27962 (1997 SY1)          Discovered 1997-Sep-23 by Wolf, M., Pravec, P. at Ondrejov
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

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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
1928-Apr-17 15:33 00:01 Hygie 0.0427657472676962 0.0427597053662751 0.0427717948201922 4.85637243974006 4.85637225370517 2425354.147704051 1.38598009116293 864.193072949706 88.4095631778316 70.4337461626081 68146.0407210332 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 01:06:29 2019-Jul-13 01:06
2003-Feb-25 01:42 < 00:01 David 0.0245882088486833 0.0245874458504329 0.0245889718554808 5.72484926711021 5.72484915978739 2452695.570949649 0.691041015847241 116.828226761465 37.2090787872543 85.9258604275445 98585.5584384971 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 01:06:29 2019-Jul-13 01:06
2184-Feb-15 20:39 00:01 Juno 0.0490868521963438 0.0490852610160028 0.0490884718381301 5.5849072650507 5.58490722067299 2518795.360543746 1.11287888507977 2337.96563816182 48.2905920919633 -88.4376549506721 151929.899388334 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 01:06:29 2019-Jul-13 01:06

Alternate Designations
 1997 SY1 = 2000 KH49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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