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344861 (2004 HP38)
Classification: Mars-crossing Asteroid          SPK-ID: 2344861
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3411980339402057 4.8155e-08  
a 2.407280407146861 7.3341e-09 au
q 1.585921065085574 1.1508e-07 au
i 6.586139726418393 5.1144e-06 deg
node 126.5976266435258 6.0021e-05 deg
peri 135.5836680256025 6.0991e-05 deg
M 93.043168812833 8.4351e-06 deg
tp 2458647.909634775272
(2019-Jun-13.40963478)
3.1572e-05 TDB
period 1364.232679308692
3.74
6.2344e-06
1.707e-08
d
yr
n .2638846037484057 1.2059e-09 deg/d
Q 3.228639749208147 9.8364e-09 au
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      5699 days (15.60 yr)  
   first obs. used      2004-03-18  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55531  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:07:00  

Additional Information
 Earth MOID = .578743 au 
 Jupiter MOID = 1.89076 au 
 T_jup = 3.432 
[ 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 17.2   n/a MPO476593  

344861 (2004 HP38)          Discovered 2004-Apr-23 by CSS at Catalina
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
1954-Mar-26 03:53 < 00:01 Jupiter 1.95182515864664 1.95182449165889 1.95182582563301 0.937998498367283 0.109144417728557 2434827.661712350 0.707578996750779 246247.21507895 2384.09386433778 -1.08901096417974 1475336.66897165 T 11 CATAB v2.0f-lin.ifort 2020-Feb-25 23:07:11 2020-Feb-25 23:07
1964-Dec-26 09:09 < 00:01 Jupiter 1.9700325788476 1.9700319480363 1.97003320966715 0.521266040107209 n/a 2438755.881103765 0.606643647465882 401.479315168177 27.2013414428973 87.7396457027177 10823463.407242 F 11 CATAB v2.0f-lin.ifort 2020-Feb-25 23:07:11 2020-Feb-25 23:07
2024-Dec-16 06:09 < 00:01 Jupiter 1.87928018456041 1.87927975085351 1.87928061831105 0.700975716261455 n/a 2460660.756360515 0.289624895311784 546.005458813339 12.1064461429339 88.1184750999594 23203598.4827709 F 11 CATAB v2.0f-lin.ifort 2020-Feb-25 23:07:11 2020-Feb-25 23:07
2095-Sep-08 20:56 00:01 Jupiter 1.93129029385459 1.9312895116382 1.93129107621903 0.541298485471496 n/a 2486494.371923882 1.0724265136263 1091.81384341014 24.7569266564245 88.4173437359997 11662798.8888338 F 11 CATAB v2.0f-lin.ifort 2020-Feb-25 23:07:11 2020-Feb-25 23:07
2155-Aug-30 19:40 00:02 Jupiter 1.89250348756706 1.89250294292688 1.89250403224877 0.877288754605818 n/a 2508399.319554417 1.65501530481648 498.652447340091 12.4993282598757 87.2274392819038 22618142.80057 F 11 CATAB v2.0f-lin.ifort 2020-Feb-25 23:07:11 2020-Feb-25 23:07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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