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JPL Small-Body Database Browser
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995 Sternberga (A923 LC)
Classification: Main-belt Asteroid          SPK-ID: 2000995
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1689023071666319 3.5669e-08  
a 2.614628089743585 8.7027e-09 au
q 2.17301137300321 9.368e-08 au
i 13.05391617059508 4.3582e-06 deg
node 221.7382195873946 1.8386e-05 deg
peri 122.2191114183355 2.2668e-05 deg
M 272.6342509037526 1.4754e-05 deg
tp 2459375.258951367216
(2021-Jun-09.75895137)
6.4058e-05 TDB
period 1544.234713120463
4.23
7.7099e-06
2.111e-08
d
yr
n .2331251829409672 1.1639e-09 deg/d
Q 3.05624480648396 1.0173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2494  
   data-arc span      42391 days (116.06 yr)  
   first obs. used      1903-12-16  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44661  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:47:03  

Additional Information
 Earth MOID = 1.19852 au 
 Jupiter MOID = 2.52293 au 
 T_jup = 3.351 
[ 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 10.2   n/a MPO435705  
diameter diameter 20.222 km 0.291 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.612 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D. (2005) Minor Planet Bull. 32, 27-28.]
[Stephens, R.D. (2013) Minor Planet Bull. 40, 34-35.]
geometric albedo albedo 0.192   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

995 Sternberga (A923 LC)          Discovered 1923-Jun-08 by Belyavskij, S. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A923 LC = A903 XA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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