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27957 (1997 RV8)
Classification: Main-belt Asteroid          SPK-ID: 2027957
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1895686156302726 4.487e-08  
a 2.480818691542839 1.4386e-08 au
q 2.010533326557359 1.1273e-07 au
i 5.404297758585805 5.4661e-06 deg
node 36.26744290616168 4.9226e-05 deg
peri 297.65370331 5.2504e-05 deg
M 211.9338609269038 2.5202e-05 deg
tp 2459187.508265146380
(2020-Dec-04.00826515)		 0.00010363 TDB
period 1427.220138078785
3.91		 1.2414e-05
3.399e-08		 d
yr
n .2522385933291303 2.1941e-09 deg/d
Q 2.951104056528319 1.7113e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1346  
   data-arc span      7892 days (21.61 yr)  
   first obs. used      1997-09-01  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53383  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:06:25  

Additional Information
 Earth MOID = 1.00684 au 
 Jupiter MOID = 2.43486 au 
 T_jup = 3.447 
[ 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 14.2   n/a MPO337494  
diameter diameter 2.850 km 0.512 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.498   0.248 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27957 (1997 RV8)          Discovered 1997-Sep-12 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 RV8 = 1999 CS22 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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