Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
216692 (2004 HW50)
Classification: Main-belt Asteroid          SPK-ID: 2216692
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763313407255763 5.5889e-08  
a 2.732381826829037 3.4359e-08 au
q 2.250577275930073 1.4637e-07 au
i 28.21015837987413 5.9316e-06 deg
node 60.3945321352622 1.1504e-05 deg
peri 205.3941277119866 3.5111e-05 deg
M 247.7199793381702 4.3714e-05 deg
tp 2459911.029751885737
(2022-Nov-27.52975189)
0.00020822 TDB
period 1649.721024159336
4.52
3.1117e-05
8.519e-08
d
yr
n .21821871378735 4.1161e-09 deg/d
Q 3.214186377728 4.0417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      7057 days (19.32 yr)  
   first obs. used      2001-10-23  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58327  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:54  

Additional Information
 Earth MOID = 1.25474 au 
 Jupiter MOID = 1.87771 au 
 T_jup = 3.161 
[ 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 15.35   n/a MPCxxxxx  

216692 (2004 HW50)          Discovered 2004-Apr-23 by NEAT at Haleakala
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ 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
1930-Jan-11 03:12 00:04 Jupiter 1.95750706852569 1.95750416482561 1.95750997232247 6.98538506528665 6.92316366323839 2425987.633300751 3.69282575020744 720.55878168898 30.6247138754676 -78.6140787411917 3503252.06500899 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:55 2021-Apr-13 23:55
1988-Jul-04 16:28 00:01 Jupiter 1.93930565868192 1.93930446429342 1.9393068530724 7.06900123369632 7.00694275090487 2447347.186327052 1.2617366084482 162.849522572552 45.1221527773183 75.7189980444105 4233476.73710369 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:55 2021-Apr-13 23:55
2024-Nov-18 21:56 < 00:01 Jupiter 1.95176063131257 1.95176011609021 1.95176114653593 6.9830807739598 6.9206545735758 2460633.414155763 0.35399839330447 165.718846869761 22.4302551021906 -85.785775531155 4260678.28414481 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:55 2021-Apr-13 23:55
2083-May-12 07:37 00:03 Jupiter 1.95307692029345 1.9530751536704 1.95307868692604 7.0702346228082 7.00862648585422 2481991.817089406 2.78304751839054 267.940487031858 45.830348566128 73.3922778654399 4384783.27087509 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:55 2021-Apr-13 23:55
2119-Sep-27 05:36 00:04 Jupiter 1.93354086676734 1.93353815760556 1.93354357600154 6.98489905184417 6.9218984844661 2495277.733175189 4.27794375421581 624.469655742041 30.8260437465365 -77.7783451327006 3509142.96351243 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:55 2021-Apr-13 23:55
2178-Mar-20 01:15 00:07 Jupiter 1.96838779550435 1.96838280503608 1.96839278603538 7.07085039377675 7.0097289279295 2516636.552068897 6.88736529886046 622.163486061443 53.8319373793825 66.8801345739487 4260722.60185843 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 23:55:55 2021-Apr-13 23:55
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-22 01:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin