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120578 (1995 QV12)
Classification: Main-belt Asteroid          SPK-ID: 2120578
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2578751675491017 5.4901e-08  
a 2.723690039790589 1.5538e-08 au
q 2.021318014427771 1.4535e-07 au
i 8.27165066758508 6.5696e-06 deg
node 340.3906652689661 3.2661e-05 deg
peri 63.7859345884231 3.6209e-05 deg
M 153.9300573074521 1.279e-05 deg
tp 2458298.469660823202
(2018-Jun-28.96966082)
5.5991e-05 TDB
period 1641.855570798986
4.50
1.4049e-05
3.846e-08
d
yr
n .2192641097077809 1.8762e-09 deg/d
Q 3.426062065153406 1.9544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      9021 days (24.70 yr)  
   first obs. used      1995-08-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50033  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:38:37  

Additional Information
 Earth MOID = 1.04563 au 
 Jupiter MOID = 2.09106 au 
 T_jup = 3.294 
[ 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 16.1   n/a MPO338104  
diameter diameter 3.899 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 72.4 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. (2014) Minor Planet Bull. 41, 102-112.]
geometric albedo albedo 0.042   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120578 (1995 QV12)          Discovered 1995-Aug-22 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1995 QV12 = 2004 QF7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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