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70030 Margaretmiller (1999 CZ1)
Classification: Inner Main-belt Asteroid          SPK-ID: 2070030
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08581369390930406 5.7136e-08  
a 1.952751682125595 5.8054e-09 au
q 1.785178846994791 1.122e-07 au
i 17.03094654410434 5.3117e-06 deg
node 319.9706907757695 1.23e-05 deg
peri 177.0441173165931 2.5049e-05 deg
M 284.7277504524154 2.3623e-05 deg
tp 2459208.901745580370
6.5683e-05 TDB
period 996.7103263136175
n .3611881912887145 1.6107e-09 deg/d
Q 2.1203245172564 6.3036e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      8003 days (21.91 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47832  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:02:27  

Additional Information
 Earth MOID = .798697 au 
 Jupiter MOID = 2.90745 au 
 T_jup = 3.832 
[ 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 15.1   n/a MPO493357  
diameter diameter 1.435 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 4.3292 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2010) Minor Planet Bull. 37, 112-118.]
[Warner, B.D (2012) Minor Planet Bull. 39, 16-21.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 108-114.]
geometric albedo albedo 0.857   0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

70030 Margaretmiller           Discovered 1999 Feb. 7 by B. D. Warner at Palmer Divide Observatory.
Margaret Joan Miller (b. 1956) is the wife of the discoverer. A graduate of Indiana University, she is an accomplished violist who, as a member of the DaVinci Quartet, was a prize winner in two major international competitions. She now devotes her time to teaching viola and violin to students of all ages.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

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