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85678 (1998 RZ7)
Classification: Main-belt Asteroid          SPK-ID: 2085678
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2275030643140442 3.7795e-08  
a 2.240773275409293 6.7132e-09 au
q 1.730990488820662 8.5102e-08 au
i 5.350814693750614 4.3211e-06 deg
node 350.9275982075104 3.8361e-05 deg
peri 5.029137121924472 3.9141e-05 deg
M 167.0901631057064 8.7984e-06 deg
tp 2458431.851780828632
(2018-Nov-09.35178083)
2.8958e-05 TDB
period 1225.167030163138
3.35
5.5058e-06
1.507e-08
d
yr
n .2938374859402346 1.3205e-09 deg/d
Q 2.750556061997926 8.2405e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1763  
   data-arc span      7937 days (21.73 yr)  
   first obs. used      1998-07-26  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40879  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:39:28  

Additional Information
 Earth MOID = .726558 au 
 Jupiter MOID = 2.69371 au 
 T_jup = 3.595 
[ 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 15.8   n/a MPO459397  
diameter diameter 4.420 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85678 (1998 RZ7)          Discovered 1998-Sep-12 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 RZ7 = 2000 DG51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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