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JPL Small-Body Database Browser
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447075 (2004 SH21)
Classification: Main-belt Asteroid          SPK-ID: 2447075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4328207724596978 1.0661e-07  
a 3.14979599502437 3.4444e-08 au
q 1.78649885936746 3.4322e-07 au
i 19.67353067196141 9.4984e-06 deg
node 119.3292200364165 3.2253e-05 deg
peri 255.3292252354271 3.3165e-05 deg
M 229.1411466239371 9.4069e-06 deg
tp 2459342.702950274946
(2021-May-08.20295028)
6.1475e-05 TDB
period 2041.841688243438
5.59
3.3492e-05
9.17e-08
d
yr
n .176311416341833 2.892e-09 deg/d
Q 4.51309313068128 4.9352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      5342 days (14.63 yr)  
   first obs. used      2004-09-21  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56256  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:15:55  

Additional Information
 Earth MOID = .893962 au 
 Jupiter MOID = 1.67806 au 
 T_jup = 2.973 
[ 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 16.3   n/a MPO361035  

447075 (2004 SH21)          Discovered 2004-Sep-21 by LINEAR at Socorro
Reference: Last Updated: 2015-10-28

[ 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
1945-Jan-09 07:23 00:03 Jupiter 1.63505329833021 1.63505119266225 1.63505540399825 4.35330841977339 4.23263686169519 2431464.807858862 2.52533950151306 474.303511824248 99.471139614376 88.7269766861413 979138.057992655 T 12 CATAB v2.0e-lin.ifort 2019-May-30 10:15:57 2019-May-30 10:15
1955-Dec-01 21:26 00:03 Jupiter 1.9157220940732 1.9157196304575 1.91572455771667 4.61147606282354 4.51457928298244 2435443.392875894 2.51602985896912 556.912802544027 83.8521668790587 81.5445733937295 1015881.63647067 T 12 CATAB v2.0e-lin.ifort 2019-May-30 10:15:57 2019-May-30 10:15
2040-Jun-20 03:01 00:02 Jupiter 1.81567709780291 1.8156746456165 1.81567954998911 4.47478506994065 4.36928956967001 2466325.626023738 1.77908667733717 176.803951699266 119.055108518521 88.2100212544076 838081.487177479 T 12 CATAB v2.0e-lin.ifort 2019-May-30 10:15:57 2019-May-30 10:15
2051-Jun-15 02:52 00:02 Jupiter 1.72079909724746 1.72079692927339 1.72080126526819 4.0995043518713 3.97762283243543 2470337.619136141 2.39397566381956 636.033498200914 69.0770303466654 83.3313297749228 1029731.6433894 T 12 CATAB v2.0e-lin.ifort 2019-May-30 10:15:57 2019-May-30 10:15
2146-Dec-31 21:11 00:07 Jupiter 1.74704681703675 1.7470441843219 1.74704944977753 3.71857774109232 3.58582742854912 2505235.382628886 6.50386562599898 772.462911060864 109.775408983612 -85.3477363536266 661373.871327791 T 12 CATAB v2.0e-lin.ifort 2019-May-30 10:15:57 2019-May-30 10:15
2157-Oct-24 06:13 00:08 Jupiter 1.90465906828504 1.90465306883759 1.90466506859311 4.23328351808998 4.12689564731324 2509184.758925651 8.39190600627771 2127.21988839907 64.7668370942208 82.7696477347849 979640.896188158 T 12 CATAB v2.0e-lin.ifort 2019-May-30 10:15:57 2019-May-30 10:15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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