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1181 Lilith (1927 CQ)
Classification: Main-belt Asteroid          SPK-ID: 2001181
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1949800145440839 3.5861e-08  
a 2.665401824087366 9.393e-09 au
q 2.145701737660984 9.4586e-08 au
i 5.601238765453218 3.981e-06 deg
node 260.701934248818 4.0463e-05 deg
peri 156.0474334403462 4.1596e-05 deg
M 219.5645984744707 1.0898e-05 deg
tp 2459620.535509507130
(2022-Feb-10.03550951)		 4.9511e-05 TDB
period 1589.433867798567
4.35		 8.4019e-06
2.3e-08		 d
yr
n .2264957399571554 1.1973e-09 deg/d
Q 3.185101910513748 1.1224e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2276  
   data-arc span      32817 days (89.85 yr)  
   first obs. used      1930-12-18  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41971  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:21:39  

Additional Information
 Earth MOID = 1.15929 au 
 Jupiter MOID = 2.16813 au 
 T_jup = 3.349 
[ 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 11.3   n/a MPO473779  
diameter diameter 20.492 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.033 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Ferrero, A. (2014) Minor Planet Bull. 41, 184-185.]
[Polakis, T. (2018) Minor Planet Bull. 45, 199-203.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.106   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1181 Lilith (1927 CQ)          Discovered 1927-Feb-11 by Jekhovsky, B. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1927 CQ = 1925 QF = 1943 WC = 1953 CA = 1964 PG = A914 BA 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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