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357220 (2002 HP8)
Classification: Outer Main-belt Asteroid          SPK-ID: 2357220
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01886932221632353 6.078e-08  
a 3.204754268147985 4.3508e-08 au
q 3.144282727238162 2.1315e-07 au
i 12.47524405696219 7.5827e-06 deg
node 199.7102587129049 2.7289e-05 deg
peri 50.80002647872185 0.00021558 deg
M 21.39331035983318 0.0002128 deg
tp 2458875.972284849168
(2020-Jan-27.47228485)
0.0012382 TDB
period 2095.513817182292
5.74
4.2674e-05
1.168e-07
d
yr
n .171795574454417 3.4985e-09 deg/d
Q 3.265225809057807 4.4329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      6233 days (17.07 yr)  
   first obs. used      2002-04-08  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49637  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:27:52  

Additional Information
 Earth MOID = 2.14682 au 
 Jupiter MOID = 1.71317 au 
 T_jup = 3.156 
[ 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 15.6   n/a MPO437509  

357220 (2002 HP8)          Discovered 2002-Apr-19 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ 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
1976-Sep-09 07:21 00:03 Jupiter 1.84455957791699 1.84455850501051 1.84456065082871 4.39663741496026 4.29092294700728 2443030.806101914 2.5472958150935 207.497307661613 32.0902253802179 77.7887522332214 2401617.36143364 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 16:27:53 2020-Nov-11 16:27
1987-Oct-20 00:47 00:02 Jupiter 1.74677059483038 1.74676994636955 1.7467712432912 4.44944887633271 4.3390989730866 2447088.532514256 1.75336817706205 177.069557790496 30.1323934477349 -89.6195232850997 2211933.82734505 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 16:27:53 2020-Nov-11 16:27
1998-Nov-30 18:22 00:01 Jupiter 1.79442634842719 1.79442553027989 1.79442716657489 4.24529509481467 4.13261068320012 2451148.265567229 1.09753705290861 105.71024457647 33.7963196206381 -79.2506260328017 2076306.9875181 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 16:27:53 2020-Nov-11 16:27
2009-Dec-23 20:53 < 00:01 Jupiter 1.94878961489929 1.94878878807184 1.94879044172674 3.81092215515913 3.6951112377559 2455189.370333585 0.529318058962234 71.0725035764542 34.9618893462966 -77.5876730904503 2098829.52190221 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 16:27:53 2020-Nov-11 16:27
2142-Oct-16 04:34 00:08 Jupiter 1.84686379393063 1.84686049480449 1.84686709311093 4.29759292292237 4.18951667149414 2503697.690621649 7.61843835894063 542.638778119634 34.7742456880374 72.3263077755529 2422384.69603078 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 16:27:53 2020-Nov-11 16:27
2153-Nov-25 05:21 00:08 Jupiter 1.74638933784259 1.74638824148536 1.74639043428439 4.44014973361708 4.32953837379514 2507755.723046311 7.96644454073349 757.816386376721 29.9304472117297 86.716543019638 2270022.83687473 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 16:27:53 2020-Nov-11 16:27
2165-Jan-06 03:33 00:09 Jupiter 1.79093296797605 1.79093051331942 1.79093542275168 4.32847292583052 4.21779290759028 2511815.648159787 8.92320360101003 777.551907119597 32.0365948956452 -80.7636856871538 2168598.86584782 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 16:27:53 2020-Nov-11 16:27
2176-Feb-01 22:55 00:10 Jupiter 1.94952239198749 1.94951778709281 1.94952699694124 3.97914050144558 3.86841120590385 2515859.454709016 10.4657710412858 596.504594819371 36.201377165496 -66.0655994293383 2164258.15603336 T 12 CATAB v2.0f-lin.ifort 2020-Nov-11 16:27:53 2020-Nov-11 16:27

Alternate Designations
 2002 HP8 = 2004 TC304 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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