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
JPL Small-Body Database Browser
Search: [ help ]  
90976 (1997 WH38)
Classification: Main-belt Asteroid          SPK-ID: 2090976
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1638151260274518 4.4091e-08  
a 2.290087455107901 9.966e-09 au
q 1.914936490035514 1.0213e-07 au
i 4.897544934833808 4.2969e-06 deg
node 246.8849755100286 5.2996e-05 deg
peri 150.4818814191111 5.4626e-05 deg
M 255.1845589891011 1.6409e-05 deg
tp 2459569.052442440459
(2021-Dec-20.55244244)
5.9307e-05 TDB
period 1265.833335231295
3.47
8.263e-06
2.262e-08
d
yr
n .2843976295933305 1.8565e-09 deg/d
Q 2.665238420180289 1.1599e-08 au
  Orbit Determination Parameters
   # obs. used (total)      688  
   data-arc span      8267 days (22.63 yr)  
   first obs. used      1997-11-26  
   last obs. used      2020-07-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53881  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:42:51  

Additional Information
 Earth MOID = .923284 au 
 Jupiter MOID = 2.74655 au 
 T_jup = 3.576 
[ 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 15.94   n/a E2021B10  

90976 (1997 WH38)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
2088-Aug-31 05:25 00:05 Iris 0.0377969244701895 0.0377801147913384 0.0378137344256749 1.72814576042508 1.72814567241423 2483929.725734725 5.44612865550107 852.667275236488 62.5078424181321 -11.128458048887 18577.3164025324 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 14:42:53 2021-Apr-13 14:42
2100-Dec-08 11:54 < 00:01 Hebe 0.0423035487618449 0.0422972834115159 0.0423098235474056 5.96637671590511 5.96637669127479 2488410.995887361 0.78412223420415 1050.70430605032 37.2811388778166 72.8090489153701 162129.196291137 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 14:42:53 2021-Apr-13 14:42

Alternate Designations
 1997 WH38 = 2000 QA227 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-18 09:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin