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300497 (2007 TW157)
Classification: Main-belt Asteroid          SPK-ID: 2300497
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1602097750231372 4.8263e-08  
a 2.579813169095623 1.6183e-08 au
q 2.166501881673087 1.2508e-07 au
i 3.610986785016219 9.0576e-06 deg
node 350.1458107866969 7.289e-05 deg
peri 91.12739442664402 8.1084e-05 deg
M 19.37920248464884 3.223e-05 deg
tp 2459119.026905933126
(2020-Sep-26.52690593)
0.00013545 TDB
period 1513.494370436993
4.14
1.4241e-05
3.899e-08
d
yr
n .2378601513371052 2.2382e-09 deg/d
Q 2.99312445651816 1.8776e-08 au
  Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      6297 days (17.24 yr)  
   first obs. used      2003-10-24  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51539  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 15:05:08  

Additional Information
 Earth MOID = 1.18553 au 
 Jupiter MOID = 2.24414 au 
 T_jup = 3.404 
[ 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 16.9   n/a MPO494601  

300497 (2007 TW157)          Discovered 2007-Oct-09 by LINEAR at Socorro
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

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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
1991-Jan-06 12:20 00:03 Amphi 0.0120797855026091 0.0120724097197781 0.012087162650628 2.04963271641665 2.04963248422971 2448263.014199056 3.39816870807324 421.500302555587 78.0454595937051 -29.9759706623539 12125.7025692597 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 15:05:09 2021-Feb-24 15:05
1994-Dec-15 21:49 00:03 Psych 0.0467301945846672 0.0467235803369747 0.0467368088567932 3.08301211989462 3.08301203591376 2449702.408750953 2.78383969052674 334.339728506656 115.492761937116 10.5091192527655 23299.5358505982 T 15 CATAB v2.0f-lin.ifort 2021-Feb-24 15:05:09 2021-Feb-24 15:05

Alternate Designations
 2007 TW157 = 2003 UM312 = 2005 EX326 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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