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268927 (2007 DR1)
Classification: Main-belt Asteroid          SPK-ID: 2268927
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2272948190080557 5.7491e-08  
a 2.390323510647222 2.0095e-08 au
q 1.847015360923962 1.2966e-07 au
i 7.821892570807759 9.2896e-06 deg
node 317.7559181799944 4.2608e-05 deg
peri 268.2267525793868 4.8168e-05 deg
M 144.8050873732173 2.5059e-05 deg
tp 2458457.543832387048
(2018-Dec-05.04383239)
9.0711e-05 TDB
period 1349.843599326575
3.70
1.7022e-05
4.66e-08
d
yr
n .266697564206402 3.3631e-09 deg/d
Q 2.933631660370483 2.4662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      7112 days (19.47 yr)  
   first obs. used      2000-03-14  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63019  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:19:36  

Additional Information
 Earth MOID = .858112 au 
 Jupiter MOID = 2.13387 au 
 T_jup = 3.485 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO494454  

268927 (2007 DR1)          Discovered 2007-Feb-16 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

Alternate Designations
 2007 DR1 = 2008 SJ13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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