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344638 (2003 QK9)
Classification: Main-belt Asteroid          SPK-ID: 2344638
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2496163286818463 7.4835e-08  
a 2.651571352219438 2.5361e-08 au
q 1.989695846040463 1.9988e-07 au
i 6.560993047829163 1.4097e-05 deg
node 170.7167119393881 5.7511e-05 deg
peri 129.386721022993 6.4215e-05 deg
M 22.27204118555069 2.4462e-05 deg
tp 2459102.931208799102
(2020-Sep-10.43120880)
0.00010704 TDB
period 1577.078837978754
4.32
2.2626e-05
6.195e-08
d
yr
n .2282701354748949 3.2749e-09 deg/d
Q 3.313446858398413 3.1692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      8122 days (22.24 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58357  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:02:12  

Additional Information
 Earth MOID = .980174 au 
 Jupiter MOID = 1.9746 au 
 T_jup = 3.336 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456702.5 (2014-Feb-14.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2470336587531401 7.3818e-08  
q 2.000384871179055 1.9655e-07 au
tp 2455944.012123754747
(2012-Jan-17.51212375)
0.00011534 TDB
node 170.8775753833433 5.7755e-05 deg
peri 128.9399117866581 6.4607e-05 deg
i 6.539314753246142 1.4059e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      8122 days (22.24 yr)  
   first obs. used      1998-04-17  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58357  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:02:12  

Additional Information
 Jupiter MOID = 1.9746 au 
 T_jup = 3.336 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.449162079020426E-15 -1.443989989339504E-14 5.167545129038482E-12 2.31108811562761E-14 1.276543039299156E-12 -1.059725373745574E-14
q -1.443989989339504E-14 3.863224358427294E-14 -1.438540059229406E-11 -7.361611489048505E-14 -3.503088239908647E-12 2.444886479230401E-14
tp 5.167545129038482E-12 -1.438540059229406E-11 1.330430529584572E-8 4.313564344146094E-11 3.352540131683728E-9 -1.920497325036572E-11
node 2.31108811562761E-14 -7.361611489048505E-14 4.313564344146094E-11 3.335606236435312E-9 -3.302825156238243E-9 2.878652963624103E-10
peri 1.276543039299156E-12 -3.503088239908647E-12 3.352540131683728E-9 -3.302825156238243E-9 4.174028575351883E-9 -2.912514245366274E-10
i -1.059725373745574E-14 2.444886479230401E-14 -1.920497325036572E-11 2.878652963624103E-10 -2.912514245366274E-10 1.976559604999961E-10

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 17.11   n/a E2021B25  

344638 (2003 QK9)          Discovered 2003-Aug-20 by CINEOS at Campo Imperatore
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ 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
1918-Aug-25 23:26 00:04 Jupiter 1.97917392145082 1.97917287537672 1.97917496752245 1.48560995302339 1.16236892926747 2421831.476457226 3.85694319755979 312.78900148171 142.981630331627 10.8061881069707 643212.664944443 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 17:02:13 2020-Nov-11 17:02
1966-Apr-14 08:29 00:02 Jupiter 1.96931094121255 1.96931009186938 1.96931179055685 1.37386453856499 1.01354898715482 2439229.853311729 1.93644594896438 230.022445104834 182.087995202101 14.9512981658091 1223460.57517042 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 17:02:13 2020-Nov-11 17:02
2013-Dec-01 07:44 < 00:01 Jupiter 1.96176306908236 1.96176224090277 1.96176389726385 1.31198665965905 0.926162552746394 2456627.822452887 0.492253490777144 275.518086544201 236.788351548296 -19.4473042199526 1320097.47339791 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 17:02:13 2020-Nov-11 17:02
2061-Jul-19 01:55 00:02 Jupiter 1.95950658541117 1.95950578666878 1.95950738415567 1.30398036652229 0.914242018816252 2474024.580126747 2.04140253039275 334.6731184077 251.519049488048 -36.8712753407201 1258965.50998805 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 17:02:13 2020-Nov-11 17:02
2109-Mar-07 06:26 00:04 Jupiter 1.963926024524 1.96392520302534 1.96392684602276 1.34839276450627 0.977538833433876 2491421.768177396 3.92939141415026 364.295886135065 265.338584951771 -28.8927595968908 935978.562410084 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 17:02:13 2020-Nov-11 17:02
2156-Oct-24 00:48 00:06 Jupiter 1.9805165357227 1.98051535759739 1.98051771384361 1.44875178971532 1.11513523465764 2508819.533405647 5.83843469566347 406.064944259479 302.588912429416 34.2947047840367 577782.333999833 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 17:02:13 2020-Nov-11 17:02

Alternate Designations
 2003 QK9 = 1998 HP8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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