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90704 (1988 RO12)
Classification: Outer Main-belt Asteroid          SPK-ID: 2090704
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03196526813026576 3.6998e-08  
a 3.947279192201885 4.0947e-08 au
q 3.821103354438133 1.5682e-07 au
i .6224569224497295 4.1006e-06 deg
node 104.4848480755485 0.00045776 deg
peri 6.565218070143763 0.00046585 deg
M 309.3737534812441 8.7164e-05 deg
tp 2459799.326862286599
(2022-Aug-07.82686229)
0.0006964 TDB
period 2864.47604543327
7.84
4.4572e-05
1.22e-07
d
yr
n .1256774342986512 1.9556e-09 deg/d
Q 4.073455029965637 4.2256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1090  
   data-arc span      11839 days (32.41 yr)  
   first obs. used      1988-09-14  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:38:53  

Additional Information
 Earth MOID = 2.83809 au 
 Jupiter MOID = .962215 au 
 T_jup = 3.059 
[ 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 13.53   n/a MPCxxxxx  
diameter diameter 12.587 km 0.934 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.049   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

90704 (1988 RO12)          Discovered 1988-Sep-14 by Bus, S. J. at Cerro Tololo
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1988 RO12 = 2000 DV56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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