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JPL Small-Body Database Browser
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487816 (2015 TW22)
Classification: Main-belt Asteroid          SPK-ID: 2487816
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .207382219248672 6.1999e-08  
a 3.176321237637599 5.3842e-08 au
q 2.517608690329625 1.926e-07 au
i 10.41018506937945 6.9339e-06 deg
node 189.7622963332009 3.0147e-05 deg
peri 213.9225659399317 3.4137e-05 deg
M 214.0855015576086 1.598e-05 deg
tp 2459438.571361751912
(2021-Aug-12.07136175)
0.00010633 TDB
period 2067.688224620154
5.66
5.2574e-05
1.439e-07
d
yr
n .1741074866672098 4.427e-09 deg/d
Q 3.835033784945573 6.5008e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      7549 days (20.67 yr)  
   first obs. used      1998-10-24  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54192  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:19:41  

Additional Information
 Earth MOID = 1.53282 au 
 Jupiter MOID = 1.62955 au 
 T_jup = 3.142 
[ 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 16.2   n/a MPO446847  

487816 (2015 TW22)          Discovered 1998-Oct-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2017-03-14

[ show close-approach data ]
Alternate Designations
 2015 TW22 = 1998 UA46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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