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26819 (1987 QH7)
Classification: Main-belt Asteroid          SPK-ID: 2026819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3247880997789609 5.1969e-08  
a 2.58592699575079 1.3721e-08 au
q 1.746048680633774 1.4118e-07 au
i 4.389687818408106 4.3844e-06 deg
node 4.509156534825971 4.5763e-05 deg
peri 10.54696323651151 4.6135e-05 deg
M 307.547966413335 7.1704e-06 deg
tp 2459221.800628184939
(2021-Jan-07.30062818)
3.1508e-05 TDB
period 1518.877738361557
4.16
1.2089e-05
3.31e-08
d
yr
n .2370171021061505 1.8864e-09 deg/d
Q 3.425805310867807 1.8177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      12133 days (33.22 yr)  
   first obs. used      1987-08-23  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46406  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:29:23  

Additional Information
 Earth MOID = .747334 au 
 Jupiter MOID = 2.04313 au 
 T_jup = 3.342 
[ 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 14.9   n/a MPO435950  

26819 (1987 QH7)          Discovered 1987-Aug-23 by Helin, E. F. at Palomar
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1956-Apr-28 09:30 < 00:01 Cybel 0.0400981383644173 0.0400963864877921 0.0400998903256292 5.06399300868094 5.06399297872391 2435591.896100483 0.913135220844276 160.828443425362 64.0515366649078 -66.2704698333898 87010.8875467707 T 27 CATAB v2.0f-lin.ifort 2020-Dec-18 03:29:26 2020-Dec-18 03:29
2122-Mar-22 11:23 00:03 Psych 0.038256098236072 0.0382501384352895 0.0382620581037232 2.85823850013927 2.8582383894886 2496184.974562514 3.27768869808935 307.468035201704 57.236067332151 15.5400642903667 32178.7572403912 T 27 CATAB v2.0f-lin.ifort 2020-Dec-18 03:29:26 2020-Dec-18 03:29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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