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7600 Vacchi (1994 RB1)
Classification: Main-belt Asteroid          SPK-ID: 2007600
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02291687605908695 1.8903e-08  
a 2.712625127814007 1.0811e-08 au
q 2.650460233965128 5.5424e-08 au
i 8.564084162782672 1.032e-06 deg
node 220.558011583828 5.1362e-06 deg
peri 181.3273368441459 4.7526e-05 deg
M 273.1339544627776 4.9407e-05 deg
tp 2459594.259140177118
(2022-Jan-14.75914018)
0.00022461 TDB
period 1631.860752807272
4.47
9.7551e-06
2.671e-08
d
yr
n .2206070581578091 1.3188e-09 deg/d
Q 2.774790021662886 1.1058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2049  
   data-arc span      10958 days (30.00 yr)  
   first obs. used      1990-11-11  
   last obs. used      2020-11-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47209  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:52:28  

Additional Information
 Earth MOID = 1.65688 au 
 Jupiter MOID = 2.31639 au 
 T_jup = 3.346 
[ 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 13.43   n/a E2021B10  
diameter diameter 9.084 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.112   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7600 Vacchi (1994 RB1)          Discovered 1994-Sep-09 by Casulli, V. S., Valentini, S. at Colleverde
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1994 RB1 = 1990 VR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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