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JPL Small-Body Database Browser
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74621 (1999 RG28)
Classification: Main-belt Asteroid          SPK-ID: 2074621
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1612799101412667 5.0657e-08  
a 2.347507792502443 1.0241e-08 au
q 1.968901946671725 1.2014e-07 au
i 6.108038022000398 5.1087e-06 deg
node 124.8001591581127 3.9153e-05 deg
peri 212.8066250353536 4.0966e-05 deg
M 162.9337261991171 1.1914e-05 deg
tp 2458005.910165910892
(2017-Sep-09.41016591)
4.2814e-05 TDB
period 1313.738691586117
3.60
8.5968e-06
2.354e-08
d
yr
n .2740270970974912 1.7932e-09 deg/d
Q 2.72611363833316 1.1893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      7151 days (19.58 yr)  
   first obs. used      1999-08-13  
   last obs. used      2019-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58665  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:14:04  

Additional Information
 Earth MOID = .961436 au 
 Jupiter MOID = 2.63891 au 
 T_jup = 3.535 
[ 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 16.2   n/a MPO266274  
diameter diameter 1.349 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.203   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74621 (1999 RG28)          Discovered 1999-Sep-07 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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