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190327 (1998 QE85)
Classification: Mars-crossing Asteroid          SPK-ID: 2190327
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2499657045381417 4.4163e-08  
a 2.206385203807059 1.2275e-08 au
q 1.654864571854896 9.571e-08 au
i 7.11306171122829 4.3511e-06 deg
node 216.1189554899475 3.1755e-05 deg
peri 170.1422028805985 3.3686e-05 deg
M 261.5704956390639 1.8118e-05 deg
tp 2459527.797907664708
(2021-Nov-09.29790766)
6.2665e-05 TDB
period 1197.072438028622
3.28
9.9898e-06
2.735e-08
d
yr
n .3007336804052224 2.5097e-09 deg/d
Q 2.757905835759222 1.5343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      554  
   data-arc span      25784 days (70.59 yr)  
   first obs. used      1949-11-19  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53973  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:11  

Additional Information
 Earth MOID = .658787 au 
 Jupiter MOID = 2.69654 au 
 T_jup = 3.610 
[ 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 16.54   n/a E2021B55  

190327 (1998 QE85)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Alternate Designations
 1998 QE85 = 2005 XE64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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