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JPL Small-Body Database Browser
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(2015 QT9)
Classification: Amor [NEO]          SPK-ID: 3726684
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1364339844496855 5.6531e-08  
a 1.223011459408449 1.0212e-08 au
q 1.05615113297373 7.6857e-08 au
i 32.26377273318849 1.7609e-05 deg
node 172.2355387415609 5.9292e-06 deg
peri 78.21352579807218 3.1079e-05 deg
M 260.3985217429662 2.7546e-05 deg
tp 2459137.180796112615
(2020-Oct-14.68079611)
3.8226e-05 TDB
period 494.0196416920822
1.35
6.1872e-06
1.694e-08
d
yr
n .7287159651526256 9.1267e-09 deg/d
Q 1.389871785843169 1.1605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      1691 days (4.63 yr)  
   first obs. used      2015-01-18  
   last obs. used      2019-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42944  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-06 05:58:55  

Additional Information
 Earth MOID = .167048 au 
 Jupiter MOID = 3.6839 au 
 T_jup = 5.067 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.5   n/a E2015T31  
rotation period rot_per 7.74 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:
[Warner, B.D. (2016) Minor Planet Bull. 43, 66-79.]

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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