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7088 Ishtar (1992 AA)
Classification: Amor [NEO]          SPK-ID: 2007088
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 235 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3909974561743277 2.3828e-08  
a 1.980461381129796 2.5721e-09 au
q 1.20610601905655 4.7134e-08 au
i 8.304370437916381 3.3009e-06 deg
node 102.6497949283362 2.6841e-05 deg
peri 354.7238830511046 2.7914e-05 deg
M 137.0395615047271 6.689e-06 deg
tp 2458812.982380537263
(2019-Nov-25.48238054)
1.8406e-05 TDB
period 1018.000506384961
2.79
1.9831e-06
5.429e-09
d
yr
n .3536344016943587 6.8891e-10 deg/d
Q 2.754816743203042 3.5777e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1229  
   data-arc span      14376 days (39.36 yr)  
   first obs. used      1981-03-03  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43904  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:25:34  

Additional Information
 Earth MOID = .223126 au 
 Jupiter MOID = 2.44228 au 
 T_jup = 3.751 
[ 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 16.84   n/a E2021B10  
diameter diameter 1.298 km 0.261 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 2.6790 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2006) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Scheirich, P.; Kusnirak, P.; Hornoch, K.; et al. (2016) Icarus 267, 267-295.]
[Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 200-213.]
geometric albedo albedo 0.260   0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

7088 Ishtar (1992 AA)          Discovered 1992-Jan-01 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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